21000362880

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{1562527}}^1$

素因数の和:1562556

約数の個数: 128

約数和(自身を含む): 76501370880

約数和(自身を除く): 55501008000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 1562527, 3125054, 4687581, 6250108, 7812635, 9375162, 10937689, 12500216, 15625270, 18750324, 21875378, 23437905, 25000432, 31250540, 32813067, 37500648, 43750756, 46875810, 50000864, 54688445, 62501080, 65626134, 75001296, 87501512, 93751620, 100001728, 109376890, 125002160, 131252268, 150002592, 164065335, 175003024, 187503240, 200003456, 218753780, 250004320, 262504536, 300005184, 328130670, 350006048, 375006480, 437507560, 500008640, 525009072, 600010368, 656261340, 700012096, 750012960, 875015120, 1000017280, 1050018144, 1312522680, 1400024192, 1500025920, 1750030240, 2100036288, 2625045360, 3000051840, 3500060480, 4200072576, 5250090720, 7000120960, 10500181440, 21000362880]

約数ペア:

[(1, 21000362880), (2, 10500181440), (3, 7000120960), (4, 5250090720), (5, 4200072576), (6, 3500060480), (7, 3000051840), (8, 2625045360), (10, 2100036288), (12, 1750030240), (14, 1500025920), (15, 1400024192), (16, 1312522680), (20, 1050018144), (21, 1000017280), (24, 875015120), (28, 750012960), (30, 700012096), (32, 656261340), (35, 600010368), (40, 525009072), (42, 500008640), (48, 437507560), (56, 375006480), (60, 350006048), (64, 328130670), (70, 300005184), (80, 262504536), (84, 250004320), (96, 218753780), (105, 200003456), (112, 187503240), (120, 175003024), (128, 164065335), (140, 150002592), (160, 131252268), (168, 125002160), (192, 109376890), (210, 100001728), (224, 93751620), (240, 87501512), (280, 75001296), (320, 65626134), (336, 62501080), (384, 54688445), (420, 50000864), (448, 46875810), (480, 43750756), (560, 37500648), (640, 32813067), (672, 31250540), (840, 25000432), (896, 23437905), (960, 21875378), (1120, 18750324), (1344, 15625270), (1680, 12500216), (1920, 10937689), (2240, 9375162), (2688, 7812635), (3360, 6250108), (4480, 4687581), (6720, 3125054), (13440, 1562527)]