20889474

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 47554560

約数和(自身を除く): 26665086

約数列:

[1, 2, 3, 6, 19, 23, 31, 38, 46, 57, 62, 69, 93, 114, 138, 186, 257, 437, 514, 589, 713, 771, 874, 1178, 1311, 1426, 1542, 1767, 2139, 2622, 3534, 4278, 4883, 5911, 7967, 9766, 11822, 13547, 14649, 15934, 17733, 23901, 27094, 29298, 35466, 40641, 47802, 81282, 112309, 151373, 183241, 224618, 302746, 336927, 366482, 454119, 549723, 673854, 908238, 1099446, 3481579, 6963158, 10444737, 20889474]

約数ペア:

[(1, 20889474), (2, 10444737), (3, 6963158), (6, 3481579), (19, 1099446), (23, 908238), (31, 673854), (38, 549723), (46, 454119), (57, 366482), (62, 336927), (69, 302746), (93, 224618), (114, 183241), (138, 151373), (186, 112309), (257, 81282), (437, 47802), (514, 40641), (589, 35466), (713, 29298), (771, 27094), (874, 23901), (1178, 17733), (1311, 15934), (1426, 14649), (1542, 13547), (1767, 11822), (2139, 9766), (2622, 7967), (3534, 5911), (4278, 4883)]