21069271320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{699511}}^1$

素因数の和:699776

約数の個数: 64

約数和(自身を含む): 63459728640

約数和(自身を除く): 42390457320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 251, 502, 753, 1004, 1255, 1506, 2008, 2510, 3012, 3765, 5020, 6024, 7530, 10040, 15060, 30120, 699511, 1399022, 2098533, 2798044, 3497555, 4197066, 5596088, 6995110, 8394132, 10492665, 13990220, 16788264, 20985330, 27980440, 41970660, 83941320, 175577261, 351154522, 526731783, 702309044, 877886305, 1053463566, 1404618088, 1755772610, 2106927132, 2633658915, 3511545220, 4213854264, 5267317830, 7023090440, 10534635660, 21069271320]

約数ペア:

[(1, 21069271320), (2, 10534635660), (3, 7023090440), (4, 5267317830), (5, 4213854264), (6, 3511545220), (8, 2633658915), (10, 2106927132), (12, 1755772610), (15, 1404618088), (20, 1053463566), (24, 877886305), (30, 702309044), (40, 526731783), (60, 351154522), (120, 175577261), (251, 83941320), (502, 41970660), (753, 27980440), (1004, 20985330), (1255, 16788264), (1506, 13990220), (2008, 10492665), (2510, 8394132), (3012, 6995110), (3765, 5596088), (5020, 4197066), (6024, 3497555), (7530, 2798044), (10040, 2098533), (15060, 1399022), (30120, 699511)]