20279402

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 39118464

約数和(自身を除く): 18839062

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 43, 86, 97, 143, 187, 194, 221, 286, 374, 442, 473, 559, 731, 946, 1067, 1118, 1261, 1462, 1649, 2134, 2431, 2522, 3298, 4171, 4862, 6149, 8041, 8342, 9503, 12298, 13871, 16082, 18139, 19006, 21437, 27742, 36278, 42874, 45881, 54223, 70907, 91762, 104533, 108446, 141814, 209066, 235807, 471614, 596453, 779977, 921791, 1192906, 1559954, 1843582, 10139701, 20279402]

約数ペア:

[(1, 20279402), (2, 10139701), (11, 1843582), (13, 1559954), (17, 1192906), (22, 921791), (26, 779977), (34, 596453), (43, 471614), (86, 235807), (97, 209066), (143, 141814), (187, 108446), (194, 104533), (221, 91762), (286, 70907), (374, 54223), (442, 45881), (473, 42874), (559, 36278), (731, 27742), (946, 21437), (1067, 19006), (1118, 18139), (1261, 16082), (1462, 13871), (1649, 12298), (2134, 9503), (2431, 8342), (2522, 8041), (3298, 6149), (4171, 4862)]