21381498

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{619}}^1$

素因数の和:747

約数の個数: 48

約数和(自身を含む): 49327200

約数和(自身を除く): 27945702

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 101, 114, 171, 202, 303, 342, 606, 619, 909, 1238, 1818, 1857, 1919, 3714, 3838, 5571, 5757, 11142, 11514, 11761, 17271, 23522, 34542, 35283, 62519, 70566, 105849, 125038, 187557, 211698, 375114, 562671, 1125342, 1187861, 2375722, 3563583, 7127166, 10690749, 21381498]

約数ペア:

[(1, 21381498), (2, 10690749), (3, 7127166), (6, 3563583), (9, 2375722), (18, 1187861), (19, 1125342), (38, 562671), (57, 375114), (101, 211698), (114, 187557), (171, 125038), (202, 105849), (303, 70566), (342, 62519), (606, 35283), (619, 34542), (909, 23522), (1238, 17271), (1818, 11761), (1857, 11514), (1919, 11142), (3714, 5757), (3838, 5571)]