21901542

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 28901658

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 83, 102, 166, 199, 221, 249, 398, 442, 498, 597, 663, 1079, 1194, 1326, 1411, 2158, 2587, 2822, 3237, 3383, 4233, 5174, 6474, 6766, 7761, 8466, 10149, 15522, 16517, 18343, 20298, 33034, 36686, 43979, 49551, 55029, 87958, 99102, 110058, 131937, 214721, 263874, 280789, 429442, 561578, 644163, 842367, 1288326, 1684734, 3650257, 7300514, 10950771, 21901542]

約数ペア:

[(1, 21901542), (2, 10950771), (3, 7300514), (6, 3650257), (13, 1684734), (17, 1288326), (26, 842367), (34, 644163), (39, 561578), (51, 429442), (78, 280789), (83, 263874), (102, 214721), (166, 131937), (199, 110058), (221, 99102), (249, 87958), (398, 55029), (442, 49551), (498, 43979), (597, 36686), (663, 33034), (1079, 20298), (1194, 18343), (1326, 16517), (1411, 15522), (2158, 10149), (2587, 8466), (2822, 7761), (3237, 6766), (3383, 6474), (4233, 5174)]