21781752

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1291}}^1$

素因数の和:1356

約数の個数: 64

約数和(自身を含む): 58915200

約数和(自身を除く): 37133448

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 37, 38, 57, 74, 76, 111, 114, 148, 152, 222, 228, 296, 444, 456, 703, 888, 1291, 1406, 2109, 2582, 2812, 3873, 4218, 5164, 5624, 7746, 8436, 10328, 15492, 16872, 24529, 30984, 47767, 49058, 73587, 95534, 98116, 143301, 147174, 191068, 196232, 286602, 294348, 382136, 573204, 588696, 907573, 1146408, 1815146, 2722719, 3630292, 5445438, 7260584, 10890876, 21781752]

約数ペア:

[(1, 21781752), (2, 10890876), (3, 7260584), (4, 5445438), (6, 3630292), (8, 2722719), (12, 1815146), (19, 1146408), (24, 907573), (37, 588696), (38, 573204), (57, 382136), (74, 294348), (76, 286602), (111, 196232), (114, 191068), (148, 147174), (152, 143301), (222, 98116), (228, 95534), (296, 73587), (444, 49058), (456, 47767), (703, 30984), (888, 24529), (1291, 16872), (1406, 15492), (2109, 10328), (2582, 8436), (2812, 7746), (3873, 5624), (4218, 5164)]