21229128

素因数分解:

$2^3\times 3^4\times {\mathrm{181}}^2$

素因数の和:380

約数の個数: 60

約数和(自身を含む): 59791545

約数和(自身を除く): 38562417

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 181, 216, 324, 362, 543, 648, 724, 1086, 1448, 1629, 2172, 3258, 4344, 4887, 6516, 9774, 13032, 14661, 19548, 29322, 32761, 39096, 58644, 65522, 98283, 117288, 131044, 196566, 262088, 294849, 393132, 589698, 786264, 884547, 1179396, 1769094, 2358792, 2653641, 3538188, 5307282, 7076376, 10614564, 21229128]

約数ペア:

[(1, 21229128), (2, 10614564), (3, 7076376), (4, 5307282), (6, 3538188), (8, 2653641), (9, 2358792), (12, 1769094), (18, 1179396), (24, 884547), (27, 786264), (36, 589698), (54, 393132), (72, 294849), (81, 262088), (108, 196566), (162, 131044), (181, 117288), (216, 98283), (324, 65522), (362, 58644), (543, 39096), (648, 32761), (724, 29322), (1086, 19548), (1448, 14661), (1629, 13032), (2172, 9774), (3258, 6516), (4344, 4887)]