21558654

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{373}}^1$

素因数の和:426

約数の個数: 72

約数和(自身を含む): 53384760

約数和(自身を除く): 31826106

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 169, 171, 234, 247, 338, 342, 373, 494, 507, 741, 746, 1014, 1119, 1482, 1521, 2223, 2238, 3042, 3211, 3357, 4446, 4849, 6422, 6714, 7087, 9633, 9698, 14174, 14547, 19266, 21261, 28899, 29094, 42522, 43641, 57798, 63037, 63783, 87282, 92131, 126074, 127566, 184262, 189111, 276393, 378222, 552786, 567333, 829179, 1134666, 1197703, 1658358, 2395406, 3593109, 7186218, 10779327, 21558654]

約数ペア:

[(1, 21558654), (2, 10779327), (3, 7186218), (6, 3593109), (9, 2395406), (13, 1658358), (18, 1197703), (19, 1134666), (26, 829179), (38, 567333), (39, 552786), (57, 378222), (78, 276393), (114, 189111), (117, 184262), (169, 127566), (171, 126074), (234, 92131), (247, 87282), (338, 63783), (342, 63037), (373, 57798), (494, 43641), (507, 42522), (741, 29094), (746, 28899), (1014, 21261), (1119, 19266), (1482, 14547), (1521, 14174), (2223, 9698), (2238, 9633), (3042, 7087), (3211, 6714), (3357, 6422), (4446, 4849)]