21397866

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1303}}^1$

素因数の和:1355

約数の個数: 64

約数和(自身を含む): 54079488

約数和(自身を除く): 32681622

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 23, 34, 42, 46, 51, 69, 102, 119, 138, 161, 238, 322, 357, 391, 483, 714, 782, 966, 1173, 1303, 2346, 2606, 2737, 3909, 5474, 7818, 8211, 9121, 16422, 18242, 22151, 27363, 29969, 44302, 54726, 59938, 66453, 89907, 132906, 155057, 179814, 209783, 310114, 419566, 465171, 509473, 629349, 930342, 1018946, 1258698, 1528419, 3056838, 3566311, 7132622, 10698933, 21397866]

約数ペア:

[(1, 21397866), (2, 10698933), (3, 7132622), (6, 3566311), (7, 3056838), (14, 1528419), (17, 1258698), (21, 1018946), (23, 930342), (34, 629349), (42, 509473), (46, 465171), (51, 419566), (69, 310114), (102, 209783), (119, 179814), (138, 155057), (161, 132906), (238, 89907), (322, 66453), (357, 59938), (391, 54726), (483, 44302), (714, 29969), (782, 27363), (966, 22151), (1173, 18242), (1303, 16422), (2346, 9121), (2606, 8211), (2737, 7818), (3909, 5474)]