21981372

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1733}}^1$

素因数の和:1898

約数の個数: 48

約数和(自身を含む): 59039232

約数和(自身を除く): 37057860

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 151, 302, 453, 604, 906, 1057, 1733, 1812, 2114, 3171, 3466, 4228, 5199, 6342, 6932, 10398, 12131, 12684, 20796, 24262, 36393, 48524, 72786, 145572, 261683, 523366, 785049, 1046732, 1570098, 1831781, 3140196, 3663562, 5495343, 7327124, 10990686, 21981372]

約数ペア:

[(1, 21981372), (2, 10990686), (3, 7327124), (4, 5495343), (6, 3663562), (7, 3140196), (12, 1831781), (14, 1570098), (21, 1046732), (28, 785049), (42, 523366), (84, 261683), (151, 145572), (302, 72786), (453, 48524), (604, 36393), (906, 24262), (1057, 20796), (1733, 12684), (1812, 12131), (2114, 10398), (3171, 6932), (3466, 6342), (4228, 5199)]