21145968

素因数分解:

$2^4\times 3^3\times {\mathrm{31}}^1\times {\mathrm{1579}}^1$

素因数の和:1627

約数の個数: 80

約数和(自身を含む): 62694400

約数和(自身を除く): 41548432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 36, 48, 54, 62, 72, 93, 108, 124, 144, 186, 216, 248, 279, 372, 432, 496, 558, 744, 837, 1116, 1488, 1579, 1674, 2232, 3158, 3348, 4464, 4737, 6316, 6696, 9474, 12632, 13392, 14211, 18948, 25264, 28422, 37896, 42633, 48949, 56844, 75792, 85266, 97898, 113688, 146847, 170532, 195796, 227376, 293694, 341064, 391592, 440541, 587388, 682128, 783184, 881082, 1174776, 1321623, 1762164, 2349552, 2643246, 3524328, 5286492, 7048656, 10572984, 21145968]

約数ペア:

[(1, 21145968), (2, 10572984), (3, 7048656), (4, 5286492), (6, 3524328), (8, 2643246), (9, 2349552), (12, 1762164), (16, 1321623), (18, 1174776), (24, 881082), (27, 783184), (31, 682128), (36, 587388), (48, 440541), (54, 391592), (62, 341064), (72, 293694), (93, 227376), (108, 195796), (124, 170532), (144, 146847), (186, 113688), (216, 97898), (248, 85266), (279, 75792), (372, 56844), (432, 48949), (496, 42633), (558, 37896), (744, 28422), (837, 25264), (1116, 18948), (1488, 14211), (1579, 13392), (1674, 12632), (2232, 9474), (3158, 6696), (3348, 6316), (4464, 4737)]