21871332

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{379}}^1$

素因数の和:625

約数の個数: 72

約数和(自身を含む): 63627200

約数和(自身を除く): 41755868

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 229, 252, 379, 458, 687, 758, 916, 1137, 1374, 1516, 1603, 2061, 2274, 2653, 2748, 3206, 3411, 4122, 4548, 4809, 5306, 6412, 6822, 7959, 8244, 9618, 10612, 13644, 14427, 15918, 19236, 23877, 28854, 31836, 47754, 57708, 86791, 95508, 173582, 260373, 347164, 520746, 607537, 781119, 1041492, 1215074, 1562238, 1822611, 2430148, 3124476, 3645222, 5467833, 7290444, 10935666, 21871332]

約数ペア:

[(1, 21871332), (2, 10935666), (3, 7290444), (4, 5467833), (6, 3645222), (7, 3124476), (9, 2430148), (12, 1822611), (14, 1562238), (18, 1215074), (21, 1041492), (28, 781119), (36, 607537), (42, 520746), (63, 347164), (84, 260373), (126, 173582), (229, 95508), (252, 86791), (379, 57708), (458, 47754), (687, 31836), (758, 28854), (916, 23877), (1137, 19236), (1374, 15918), (1516, 14427), (1603, 13644), (2061, 10612), (2274, 9618), (2653, 8244), (2748, 7959), (3206, 6822), (3411, 6412), (4122, 5306), (4548, 4809)]