21119904

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{5641}}^1$

素因数の和:5670

約数の個数: 72

約数和(自身を含む): 64691172

約数和(自身を除く): 43571268

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 5641, 11282, 16923, 22564, 33846, 45128, 50769, 67692, 73333, 90256, 101538, 135384, 146666, 180512, 203076, 219999, 270768, 293332, 406152, 439998, 541536, 586664, 659997, 812304, 879996, 1173328, 1319994, 1624608, 1759992, 2346656, 2639988, 3519984, 5279976, 7039968, 10559952, 21119904]

約数ペア:

[(1, 21119904), (2, 10559952), (3, 7039968), (4, 5279976), (6, 3519984), (8, 2639988), (9, 2346656), (12, 1759992), (13, 1624608), (16, 1319994), (18, 1173328), (24, 879996), (26, 812304), (32, 659997), (36, 586664), (39, 541536), (48, 439998), (52, 406152), (72, 293332), (78, 270768), (96, 219999), (104, 203076), (117, 180512), (144, 146666), (156, 135384), (208, 101538), (234, 90256), (288, 73333), (312, 67692), (416, 50769), (468, 45128), (624, 33846), (936, 22564), (1248, 16923), (1872, 11282), (3744, 5641)]