19877094

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:533

約数の個数: 48

約数和(自身を含む): 44897424

約数和(自身を除く): 25020330

約数列:

[1, 2, 3, 6, 9, 18, 43, 61, 86, 122, 129, 183, 258, 366, 387, 421, 549, 774, 842, 1098, 1263, 2526, 2623, 3789, 5246, 7578, 7869, 15738, 18103, 23607, 25681, 36206, 47214, 51362, 54309, 77043, 108618, 154086, 162927, 231129, 325854, 462258, 1104283, 2208566, 3312849, 6625698, 9938547, 19877094]

約数ペア:

[(1, 19877094), (2, 9938547), (3, 6625698), (6, 3312849), (9, 2208566), (18, 1104283), (43, 462258), (61, 325854), (86, 231129), (122, 162927), (129, 154086), (183, 108618), (258, 77043), (366, 54309), (387, 51362), (421, 47214), (549, 36206), (774, 25681), (842, 23607), (1098, 18103), (1263, 15738), (2526, 7869), (2623, 7578), (3789, 5246)]