21017194240

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2345669}}^1$

素因数の和:2345697

約数の個数: 72

約数和(自身を含む): 57534593760

約数和(自身を除く): 36517399520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 2345669, 4691338, 9382676, 11728345, 16419683, 18765352, 23456690, 32839366, 37530704, 46913380, 65678732, 75061408, 82098415, 93826760, 131357464, 150122816, 164196830, 187653520, 262714928, 300245632, 328393660, 375307040, 525429856, 600491264, 656787320, 750614080, 1050859712, 1313574640, 1501228160, 2101719424, 2627149280, 3002456320, 4203438848, 5254298560, 10508597120, 21017194240]

約数ペア:

[(1, 21017194240), (2, 10508597120), (4, 5254298560), (5, 4203438848), (7, 3002456320), (8, 2627149280), (10, 2101719424), (14, 1501228160), (16, 1313574640), (20, 1050859712), (28, 750614080), (32, 656787320), (35, 600491264), (40, 525429856), (56, 375307040), (64, 328393660), (70, 300245632), (80, 262714928), (112, 187653520), (128, 164196830), (140, 150122816), (160, 131357464), (224, 93826760), (256, 82098415), (280, 75061408), (320, 65678732), (448, 46913380), (560, 37530704), (640, 32839366), (896, 23456690), (1120, 18765352), (1280, 16419683), (1792, 11728345), (2240, 9382676), (4480, 4691338), (8960, 2345669)]