21851148

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 56977200

約数和(自身を除く): 35126052

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 101, 121, 132, 149, 202, 242, 298, 303, 363, 404, 447, 484, 596, 606, 726, 894, 1111, 1212, 1452, 1639, 1788, 2222, 3278, 3333, 4444, 4917, 6556, 6666, 9834, 12221, 13332, 15049, 18029, 19668, 24442, 30098, 36058, 36663, 45147, 48884, 54087, 60196, 72116, 73326, 90294, 108174, 146652, 165539, 180588, 216348, 331078, 496617, 662156, 993234, 1820929, 1986468, 3641858, 5462787, 7283716, 10925574, 21851148]

約数ペア:

[(1, 21851148), (2, 10925574), (3, 7283716), (4, 5462787), (6, 3641858), (11, 1986468), (12, 1820929), (22, 993234), (33, 662156), (44, 496617), (66, 331078), (101, 216348), (121, 180588), (132, 165539), (149, 146652), (202, 108174), (242, 90294), (298, 73326), (303, 72116), (363, 60196), (404, 54087), (447, 48884), (484, 45147), (596, 36663), (606, 36058), (726, 30098), (894, 24442), (1111, 19668), (1212, 18029), (1452, 15049), (1639, 13332), (1788, 12221), (2222, 9834), (3278, 6666), (3333, 6556), (4444, 4917)]