21609558

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 50872320

約数和(自身を除く): 29262762

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 127, 137, 138, 207, 254, 274, 381, 411, 414, 621, 762, 822, 1143, 1233, 1242, 2286, 2466, 2921, 3151, 3429, 3699, 5842, 6302, 6858, 7398, 8763, 9453, 17399, 17526, 18906, 26289, 28359, 34798, 52197, 52578, 56718, 78867, 85077, 104394, 156591, 157734, 170154, 313182, 400177, 469773, 800354, 939546, 1200531, 2401062, 3601593, 7203186, 10804779, 21609558]

約数ペア:

[(1, 21609558), (2, 10804779), (3, 7203186), (6, 3601593), (9, 2401062), (18, 1200531), (23, 939546), (27, 800354), (46, 469773), (54, 400177), (69, 313182), (127, 170154), (137, 157734), (138, 156591), (207, 104394), (254, 85077), (274, 78867), (381, 56718), (411, 52578), (414, 52197), (621, 34798), (762, 28359), (822, 26289), (1143, 18906), (1233, 17526), (1242, 17399), (2286, 9453), (2466, 8763), (2921, 7398), (3151, 6858), (3429, 6302), (3699, 5842)]