18959904

素因数分解:

$2^5\times 3^2\times {\mathrm{43}}^1\times {\mathrm{1531}}^1$

素因数の和:1590

約数の個数: 72

約数和(自身を含む): 55207152

約数和(自身を除く): 36247248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 43, 48, 72, 86, 96, 129, 144, 172, 258, 288, 344, 387, 516, 688, 774, 1032, 1376, 1531, 1548, 2064, 3062, 3096, 4128, 4593, 6124, 6192, 9186, 12248, 12384, 13779, 18372, 24496, 27558, 36744, 48992, 55116, 65833, 73488, 110232, 131666, 146976, 197499, 220464, 263332, 394998, 440928, 526664, 592497, 789996, 1053328, 1184994, 1579992, 2106656, 2369988, 3159984, 4739976, 6319968, 9479952, 18959904]

約数ペア:

[(1, 18959904), (2, 9479952), (3, 6319968), (4, 4739976), (6, 3159984), (8, 2369988), (9, 2106656), (12, 1579992), (16, 1184994), (18, 1053328), (24, 789996), (32, 592497), (36, 526664), (43, 440928), (48, 394998), (72, 263332), (86, 220464), (96, 197499), (129, 146976), (144, 131666), (172, 110232), (258, 73488), (288, 65833), (344, 55116), (387, 48992), (516, 36744), (688, 27558), (774, 24496), (1032, 18372), (1376, 13779), (1531, 12384), (1548, 12248), (2064, 9186), (3062, 6192), (3096, 6124), (4128, 4593)]