21541728

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:488

約数の個数: 96

約数和(自身を含む): 62530272

約数和(自身を除く): 40988544

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 41, 48, 52, 78, 82, 96, 104, 123, 156, 164, 208, 246, 312, 328, 416, 421, 492, 533, 624, 656, 842, 984, 1066, 1248, 1263, 1312, 1599, 1684, 1968, 2132, 2526, 3198, 3368, 3936, 4264, 5052, 5473, 6396, 6736, 8528, 10104, 10946, 12792, 13472, 16419, 17056, 17261, 20208, 21892, 25584, 32838, 34522, 40416, 43784, 51168, 51783, 65676, 69044, 87568, 103566, 131352, 138088, 175136, 207132, 224393, 262704, 276176, 414264, 448786, 525408, 552352, 673179, 828528, 897572, 1346358, 1657056, 1795144, 2692716, 3590288, 5385432, 7180576, 10770864, 21541728]

約数ペア:

[(1, 21541728), (2, 10770864), (3, 7180576), (4, 5385432), (6, 3590288), (8, 2692716), (12, 1795144), (13, 1657056), (16, 1346358), (24, 897572), (26, 828528), (32, 673179), (39, 552352), (41, 525408), (48, 448786), (52, 414264), (78, 276176), (82, 262704), (96, 224393), (104, 207132), (123, 175136), (156, 138088), (164, 131352), (208, 103566), (246, 87568), (312, 69044), (328, 65676), (416, 51783), (421, 51168), (492, 43784), (533, 40416), (624, 34522), (656, 32838), (842, 25584), (984, 21892), (1066, 20208), (1248, 17261), (1263, 17056), (1312, 16419), (1599, 13472), (1684, 12792), (1968, 10946), (2132, 10104), (2526, 8528), (3198, 6736), (3368, 6396), (3936, 5473), (4264, 5052)]