21879728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2843}}^1$

素因数の和:2901

約数の個数: 40

約数和(自身を含む): 46903248

約数和(自身を除く): 25023520

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 208, 296, 481, 592, 962, 1924, 2843, 3848, 5686, 7696, 11372, 22744, 36959, 45488, 73918, 105191, 147836, 210382, 295672, 420764, 591344, 841528, 1367483, 1683056, 2734966, 5469932, 10939864, 21879728]

約数ペア:

[(1, 21879728), (2, 10939864), (4, 5469932), (8, 2734966), (13, 1683056), (16, 1367483), (26, 841528), (37, 591344), (52, 420764), (74, 295672), (104, 210382), (148, 147836), (208, 105191), (296, 73918), (481, 45488), (592, 36959), (962, 22744), (1924, 11372), (2843, 7696), (3848, 5686)]