21197664

素因数分解:

$2^5\times 3^2\times {\mathrm{89}}^1\times {\mathrm{827}}^1$

素因数の和:932

約数の個数: 72

約数和(自身を含む): 61031880

約数和(自身を除く): 39834216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 89, 96, 144, 178, 267, 288, 356, 534, 712, 801, 827, 1068, 1424, 1602, 1654, 2136, 2481, 2848, 3204, 3308, 4272, 4962, 6408, 6616, 7443, 8544, 9924, 12816, 13232, 14886, 19848, 25632, 26464, 29772, 39696, 59544, 73603, 79392, 119088, 147206, 220809, 238176, 294412, 441618, 588824, 662427, 883236, 1177648, 1324854, 1766472, 2355296, 2649708, 3532944, 5299416, 7065888, 10598832, 21197664]

約数ペア:

[(1, 21197664), (2, 10598832), (3, 7065888), (4, 5299416), (6, 3532944), (8, 2649708), (9, 2355296), (12, 1766472), (16, 1324854), (18, 1177648), (24, 883236), (32, 662427), (36, 588824), (48, 441618), (72, 294412), (89, 238176), (96, 220809), (144, 147206), (178, 119088), (267, 79392), (288, 73603), (356, 59544), (534, 39696), (712, 29772), (801, 26464), (827, 25632), (1068, 19848), (1424, 14886), (1602, 13232), (1654, 12816), (2136, 9924), (2481, 8544), (2848, 7443), (3204, 6616), (3308, 6408), (4272, 4962)]