21529970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{27961}}^1$

素因数の和:27986

約数の個数: 32

約数和(自身を含む): 48318336

約数和(自身を除く): 26788366

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 27961, 55922, 139805, 195727, 279610, 307571, 391454, 615142, 978635, 1537855, 1957270, 2152997, 3075710, 4305994, 10764985, 21529970]

約数ペア:

[(1, 21529970), (2, 10764985), (5, 4305994), (7, 3075710), (10, 2152997), (11, 1957270), (14, 1537855), (22, 978635), (35, 615142), (55, 391454), (70, 307571), (77, 279610), (110, 195727), (154, 139805), (385, 55922), (770, 27961)]