18905724

素因数分解:

$2^2\times 3^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:141

約数の個数: 120

約数和(自身を含む): 53665920

約数和(自身を除く): 34760196

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 43, 46, 54, 59, 69, 81, 86, 92, 108, 118, 129, 138, 162, 172, 177, 207, 236, 258, 276, 324, 354, 387, 414, 516, 531, 621, 708, 774, 828, 989, 1062, 1161, 1242, 1357, 1548, 1593, 1863, 1978, 2124, 2322, 2484, 2537, 2714, 2967, 3186, 3483, 3726, 3956, 4071, 4644, 4779, 5074, 5428, 5934, 6372, 6966, 7452, 7611, 8142, 8901, 9558, 10148, 11868, 12213, 13932, 15222, 16284, 17802, 19116, 22833, 24426, 26703, 30444, 35604, 36639, 45666, 48852, 53406, 58351, 68499, 73278, 80109, 91332, 106812, 109917, 116702, 136998, 146556, 160218, 175053, 205497, 219834, 233404, 273996, 320436, 350106, 410994, 439668, 525159, 700212, 821988, 1050318, 1575477, 2100636, 3150954, 4726431, 6301908, 9452862, 18905724]

約数ペア:

[(1, 18905724), (2, 9452862), (3, 6301908), (4, 4726431), (6, 3150954), (9, 2100636), (12, 1575477), (18, 1050318), (23, 821988), (27, 700212), (36, 525159), (43, 439668), (46, 410994), (54, 350106), (59, 320436), (69, 273996), (81, 233404), (86, 219834), (92, 205497), (108, 175053), (118, 160218), (129, 146556), (138, 136998), (162, 116702), (172, 109917), (177, 106812), (207, 91332), (236, 80109), (258, 73278), (276, 68499), (324, 58351), (354, 53406), (387, 48852), (414, 45666), (516, 36639), (531, 35604), (621, 30444), (708, 26703), (774, 24426), (828, 22833), (989, 19116), (1062, 17802), (1161, 16284), (1242, 15222), (1357, 13932), (1548, 12213), (1593, 11868), (1863, 10148), (1978, 9558), (2124, 8901), (2322, 8142), (2484, 7611), (2537, 7452), (2714, 6966), (2967, 6372), (3186, 5934), (3483, 5428), (3726, 5074), (3956, 4779), (4071, 4644)]