18211998

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1109}}^1$

素因数の和:1161

約数の個数: 64

約数和(自身を含む): 46033920

約数和(自身を除く): 27821922

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, 1109, 1173, 2218, 2346, 2737, 3327, 5474, 6654, 7763, 8211, 15526, 16422, 18853, 23289, 25507, 37706, 46578, 51014, 56559, 76521, 113118, 131971, 153042, 178549, 263942, 357098, 395913, 433619, 535647, 791826, 867238, 1071294, 1300857, 2601714, 3035333, 6070666, 9105999, 18211998]

約数ペア:

[(1, 18211998), (2, 9105999), (3, 6070666), (6, 3035333), (7, 2601714), (14, 1300857), (17, 1071294), (21, 867238), (23, 791826), (34, 535647), (42, 433619), (46, 395913), (51, 357098), (69, 263942), (102, 178549), (119, 153042), (138, 131971), (161, 113118), (238, 76521), (322, 56559), (357, 51014), (391, 46578), (483, 37706), (714, 25507), (782, 23289), (966, 18853), (1109, 16422), (1173, 15526), (2218, 8211), (2346, 7763), (2737, 6654), (3327, 5474)]