21551178

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 49175424

約数和(自身を除く): 27624246

約数列:

[1, 2, 3, 6, 11, 22, 33, 53, 61, 66, 101, 106, 122, 159, 183, 202, 303, 318, 366, 583, 606, 671, 1111, 1166, 1342, 1749, 2013, 2222, 3233, 3333, 3498, 4026, 5353, 6161, 6466, 6666, 9699, 10706, 12322, 16059, 18483, 19398, 32118, 35563, 36966, 58883, 67771, 71126, 106689, 117766, 135542, 176649, 203313, 213378, 326533, 353298, 406626, 653066, 979599, 1959198, 3591863, 7183726, 10775589, 21551178]

約数ペア:

[(1, 21551178), (2, 10775589), (3, 7183726), (6, 3591863), (11, 1959198), (22, 979599), (33, 653066), (53, 406626), (61, 353298), (66, 326533), (101, 213378), (106, 203313), (122, 176649), (159, 135542), (183, 117766), (202, 106689), (303, 71126), (318, 67771), (366, 58883), (583, 36966), (606, 35563), (671, 32118), (1111, 19398), (1166, 18483), (1342, 16059), (1749, 12322), (2013, 10706), (2222, 9699), (3233, 6666), (3333, 6466), (3498, 6161), (4026, 5353)]