21515832

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:333

約数の個数: 96

約数和(自身を含む): 63598080

約数和(自身を除く): 42082248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 127, 156, 181, 234, 254, 312, 362, 381, 468, 508, 543, 724, 762, 936, 1016, 1086, 1143, 1448, 1524, 1629, 1651, 2172, 2286, 2353, 3048, 3258, 3302, 4344, 4572, 4706, 4953, 6516, 6604, 7059, 9144, 9412, 9906, 13032, 13208, 14118, 14859, 18824, 19812, 21177, 22987, 28236, 29718, 39624, 42354, 45974, 56472, 59436, 68961, 84708, 91948, 118872, 137922, 169416, 183896, 206883, 275844, 298831, 413766, 551688, 597662, 827532, 896493, 1195324, 1655064, 1792986, 2390648, 2689479, 3585972, 5378958, 7171944, 10757916, 21515832]

約数ペア:

[(1, 21515832), (2, 10757916), (3, 7171944), (4, 5378958), (6, 3585972), (8, 2689479), (9, 2390648), (12, 1792986), (13, 1655064), (18, 1195324), (24, 896493), (26, 827532), (36, 597662), (39, 551688), (52, 413766), (72, 298831), (78, 275844), (104, 206883), (117, 183896), (127, 169416), (156, 137922), (181, 118872), (234, 91948), (254, 84708), (312, 68961), (362, 59436), (381, 56472), (468, 45974), (508, 42354), (543, 39624), (724, 29718), (762, 28236), (936, 22987), (1016, 21177), (1086, 19812), (1143, 18824), (1448, 14859), (1524, 14118), (1629, 13208), (1651, 13032), (2172, 9906), (2286, 9412), (2353, 9144), (3048, 7059), (3258, 6604), (3302, 6516), (4344, 4953), (4572, 4706)]