19421668

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 40247424

約数和(自身を除く): 20825756

約数列:

[1, 2, 4, 7, 14, 28, 61, 83, 122, 137, 166, 244, 274, 332, 427, 548, 581, 854, 959, 1162, 1708, 1918, 2324, 3836, 5063, 8357, 10126, 11371, 16714, 20252, 22742, 33428, 35441, 45484, 58499, 70882, 79597, 116998, 141764, 159194, 233996, 318388, 693631, 1387262, 2774524, 4855417, 9710834, 19421668]

約数ペア:

[(1, 19421668), (2, 9710834), (4, 4855417), (7, 2774524), (14, 1387262), (28, 693631), (61, 318388), (83, 233996), (122, 159194), (137, 141764), (166, 116998), (244, 79597), (274, 70882), (332, 58499), (427, 45484), (548, 35441), (581, 33428), (854, 22742), (959, 20252), (1162, 16714), (1708, 11371), (1918, 10126), (2324, 8357), (3836, 5063)]