21602620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4373}}^1$

素因数の和:4414

約数の個数: 48

約数和(自身を含む): 51438240

約数和(自身を除く): 29835620

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4373, 4940, 8746, 17492, 21865, 43730, 56849, 83087, 87460, 113698, 166174, 227396, 284245, 332348, 415435, 568490, 830870, 1080131, 1136980, 1661740, 2160262, 4320524, 5400655, 10801310, 21602620]

約数ペア:

[(1, 21602620), (2, 10801310), (4, 5400655), (5, 4320524), (10, 2160262), (13, 1661740), (19, 1136980), (20, 1080131), (26, 830870), (38, 568490), (52, 415435), (65, 332348), (76, 284245), (95, 227396), (130, 166174), (190, 113698), (247, 87460), (260, 83087), (380, 56849), (494, 43730), (988, 21865), (1235, 17492), (2470, 8746), (4373, 4940)]