21328992

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{2389}}^1$

素因数の和:2436

約数の個数: 72

約数和(自身を含む): 62637120

約数和(自身を除く): 41308128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 93, 96, 124, 144, 186, 248, 279, 288, 372, 496, 558, 744, 992, 1116, 1488, 2232, 2389, 2976, 4464, 4778, 7167, 8928, 9556, 14334, 19112, 21501, 28668, 38224, 43002, 57336, 74059, 76448, 86004, 114672, 148118, 172008, 222177, 229344, 296236, 344016, 444354, 592472, 666531, 688032, 888708, 1184944, 1333062, 1777416, 2369888, 2666124, 3554832, 5332248, 7109664, 10664496, 21328992]

約数ペア:

[(1, 21328992), (2, 10664496), (3, 7109664), (4, 5332248), (6, 3554832), (8, 2666124), (9, 2369888), (12, 1777416), (16, 1333062), (18, 1184944), (24, 888708), (31, 688032), (32, 666531), (36, 592472), (48, 444354), (62, 344016), (72, 296236), (93, 229344), (96, 222177), (124, 172008), (144, 148118), (186, 114672), (248, 86004), (279, 76448), (288, 74059), (372, 57336), (496, 43002), (558, 38224), (744, 28668), (992, 21501), (1116, 19112), (1488, 14334), (2232, 9556), (2389, 8928), (2976, 7167), (4464, 4778)]