21358926

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^3\times {\mathrm{173}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 49130640

約数和(自身を除く): 27771714

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 173, 342, 346, 361, 519, 722, 1038, 1083, 1557, 2166, 3114, 3249, 3287, 6498, 6574, 6859, 9861, 13718, 19722, 20577, 29583, 41154, 59166, 61731, 62453, 123462, 124906, 187359, 374718, 562077, 1124154, 1186607, 2373214, 3559821, 7119642, 10679463, 21358926]

約数ペア:

[(1, 21358926), (2, 10679463), (3, 7119642), (6, 3559821), (9, 2373214), (18, 1186607), (19, 1124154), (38, 562077), (57, 374718), (114, 187359), (171, 124906), (173, 123462), (342, 62453), (346, 61731), (361, 59166), (519, 41154), (722, 29583), (1038, 20577), (1083, 19722), (1557, 13718), (2166, 9861), (3114, 6859), (3249, 6574), (3287, 6498)]