19919886

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1213}}^1$

素因数の和:1265

約数の個数: 64

約数和(自身を含む): 50347008

約数和(自身を除く): 30427122

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, 1213, 2346, 2426, 2737, 3639, 5474, 7278, 8211, 8491, 16422, 16982, 20621, 25473, 27899, 41242, 50946, 55798, 61863, 83697, 123726, 144347, 167394, 195293, 288694, 390586, 433041, 474283, 585879, 866082, 948566, 1171758, 1422849, 2845698, 3319981, 6639962, 9959943, 19919886]

約数ペア:

[(1, 19919886), (2, 9959943), (3, 6639962), (6, 3319981), (7, 2845698), (14, 1422849), (17, 1171758), (21, 948566), (23, 866082), (34, 585879), (42, 474283), (46, 433041), (51, 390586), (69, 288694), (102, 195293), (119, 167394), (138, 144347), (161, 123726), (238, 83697), (322, 61863), (357, 55798), (391, 50946), (483, 41242), (714, 27899), (782, 25473), (966, 20621), (1173, 16982), (1213, 16422), (2346, 8491), (2426, 8211), (2737, 7278), (3639, 5474)]