21151270812

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{157081}}^1$

素因数の和:157331

約数の個数: 72

約数和(自身を含む): 57661660560

約数和(自身を除く): 36510389748

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 229, 294, 458, 588, 687, 916, 1374, 1603, 2748, 3206, 4809, 6412, 9618, 11221, 19236, 22442, 33663, 44884, 67326, 134652, 157081, 314162, 471243, 628324, 942486, 1099567, 1884972, 2199134, 3298701, 4398268, 6597402, 7696969, 13194804, 15393938, 23090907, 30787876, 35971549, 46181814, 71943098, 92363628, 107914647, 143886196, 215829294, 251800843, 431658588, 503601686, 755402529, 1007203372, 1510805058, 1762605901, 3021610116, 3525211802, 5287817703, 7050423604, 10575635406, 21151270812]

約数ペア:

[(1, 21151270812), (2, 10575635406), (3, 7050423604), (4, 5287817703), (6, 3525211802), (7, 3021610116), (12, 1762605901), (14, 1510805058), (21, 1007203372), (28, 755402529), (42, 503601686), (49, 431658588), (84, 251800843), (98, 215829294), (147, 143886196), (196, 107914647), (229, 92363628), (294, 71943098), (458, 46181814), (588, 35971549), (687, 30787876), (916, 23090907), (1374, 15393938), (1603, 13194804), (2748, 7696969), (3206, 6597402), (4809, 4398268), (6412, 3298701), (9618, 2199134), (11221, 1884972), (19236, 1099567), (22442, 942486), (33663, 628324), (44884, 471243), (67326, 314162), (134652, 157081)]