21204291238

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{325309}}^1$

素因数の和:325456

約数の個数: 32

約数和(自身を含む): 36070372800

約数和(自身を除く): 14866081562

約数列:

[1, 2, 13, 23, 26, 46, 109, 218, 299, 598, 1417, 2507, 2834, 5014, 32591, 65182, 325309, 650618, 4229017, 7482107, 8458034, 14964214, 35458681, 70917362, 97267391, 194534782, 460962853, 815549663, 921925706, 1631099326, 10602145619, 21204291238]

約数ペア:

[(1, 21204291238), (2, 10602145619), (13, 1631099326), (23, 921925706), (26, 815549663), (46, 460962853), (109, 194534782), (218, 97267391), (299, 70917362), (598, 35458681), (1417, 14964214), (2507, 8458034), (2834, 7482107), (5014, 4229017), (32591, 650618), (65182, 325309)]