21603840

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:152

約数の個数: 160

約数和(自身を含む): 72182880

約数和(自身を除く): 50579040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 97, 116, 120, 128, 145, 160, 174, 192, 194, 232, 240, 256, 290, 291, 320, 348, 384, 388, 435, 464, 480, 485, 512, 580, 582, 640, 696, 768, 776, 870, 928, 960, 970, 1160, 1164, 1280, 1392, 1455, 1536, 1552, 1740, 1856, 1920, 1940, 2320, 2328, 2560, 2784, 2813, 2910, 3104, 3480, 3712, 3840, 3880, 4640, 4656, 5568, 5626, 5820, 6208, 6960, 7424, 7680, 7760, 8439, 9280, 9312, 11136, 11252, 11640, 12416, 13920, 14065, 14848, 15520, 16878, 18560, 18624, 22272, 22504, 23280, 24832, 27840, 28130, 31040, 33756, 37120, 37248, 42195, 44544, 45008, 46560, 49664, 55680, 56260, 62080, 67512, 74240, 74496, 84390, 90016, 93120, 111360, 112520, 124160, 135024, 148992, 168780, 180032, 186240, 222720, 225040, 248320, 270048, 337560, 360064, 372480, 450080, 540096, 675120, 720128, 744960, 900160, 1080192, 1350240, 1440256, 1800320, 2160384, 2700480, 3600640, 4320768, 5400960, 7201280, 10801920, 21603840]

約数ペア:

[(1, 21603840), (2, 10801920), (3, 7201280), (4, 5400960), (5, 4320768), (6, 3600640), (8, 2700480), (10, 2160384), (12, 1800320), (15, 1440256), (16, 1350240), (20, 1080192), (24, 900160), (29, 744960), (30, 720128), (32, 675120), (40, 540096), (48, 450080), (58, 372480), (60, 360064), (64, 337560), (80, 270048), (87, 248320), (96, 225040), (97, 222720), (116, 186240), (120, 180032), (128, 168780), (145, 148992), (160, 135024), (174, 124160), (192, 112520), (194, 111360), (232, 93120), (240, 90016), (256, 84390), (290, 74496), (291, 74240), (320, 67512), (348, 62080), (384, 56260), (388, 55680), (435, 49664), (464, 46560), (480, 45008), (485, 44544), (512, 42195), (580, 37248), (582, 37120), (640, 33756), (696, 31040), (768, 28130), (776, 27840), (870, 24832), (928, 23280), (960, 22504), (970, 22272), (1160, 18624), (1164, 18560), (1280, 16878), (1392, 15520), (1455, 14848), (1536, 14065), (1552, 13920), (1740, 12416), (1856, 11640), (1920, 11252), (1940, 11136), (2320, 9312), (2328, 9280), (2560, 8439), (2784, 7760), (2813, 7680), (2910, 7424), (3104, 6960), (3480, 6208), (3712, 5820), (3840, 5626), (3880, 5568), (4640, 4656)]