21853280

素因数分解:

$2^5\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1871}}^1$

素因数の和:1959

約数の個数: 48

約数和(自身を含む): 52363584

約数和(自身を除く): 30510304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 73, 80, 146, 160, 292, 365, 584, 730, 1168, 1460, 1871, 2336, 2920, 3742, 5840, 7484, 9355, 11680, 14968, 18710, 29936, 37420, 59872, 74840, 136583, 149680, 273166, 299360, 546332, 682915, 1092664, 1365830, 2185328, 2731660, 4370656, 5463320, 10926640, 21853280]

約数ペア:

[(1, 21853280), (2, 10926640), (4, 5463320), (5, 4370656), (8, 2731660), (10, 2185328), (16, 1365830), (20, 1092664), (32, 682915), (40, 546332), (73, 299360), (80, 273166), (146, 149680), (160, 136583), (292, 74840), (365, 59872), (584, 37420), (730, 29936), (1168, 18710), (1460, 14968), (1871, 11680), (2336, 9355), (2920, 7484), (3742, 5840)]