21230412

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{263}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 58722048

約数和(自身を除く): 37491636

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 186, 217, 263, 372, 434, 526, 651, 789, 868, 961, 1052, 1302, 1578, 1841, 1922, 2604, 2883, 3156, 3682, 3844, 5523, 5766, 6727, 7364, 8153, 11046, 11532, 13454, 16306, 20181, 22092, 24459, 26908, 32612, 40362, 48918, 57071, 80724, 97836, 114142, 171213, 228284, 252743, 342426, 505486, 684852, 758229, 1010972, 1516458, 1769201, 3032916, 3538402, 5307603, 7076804, 10615206, 21230412]

約数ペア:

[(1, 21230412), (2, 10615206), (3, 7076804), (4, 5307603), (6, 3538402), (7, 3032916), (12, 1769201), (14, 1516458), (21, 1010972), (28, 758229), (31, 684852), (42, 505486), (62, 342426), (84, 252743), (93, 228284), (124, 171213), (186, 114142), (217, 97836), (263, 80724), (372, 57071), (434, 48918), (526, 40362), (651, 32612), (789, 26908), (868, 24459), (961, 22092), (1052, 20181), (1302, 16306), (1578, 13454), (1841, 11532), (1922, 11046), (2604, 8153), (2883, 7364), (3156, 6727), (3682, 5766), (3844, 5523)]