21530427904

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{2213243}}^1$

素因数の和:2213280

約数の個数: 40

約数和(自身を含む): 45282972240

約数和(自身を除く): 23752544336

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1216, 2432, 4864, 9728, 2213243, 4426486, 8852972, 17705944, 35411888, 42051617, 70823776, 84103234, 141647552, 168206468, 283295104, 336412936, 566590208, 672825872, 1133180416, 1345651744, 2691303488, 5382606976, 10765213952, 21530427904]

約数ペア:

[(1, 21530427904), (2, 10765213952), (4, 5382606976), (8, 2691303488), (16, 1345651744), (19, 1133180416), (32, 672825872), (38, 566590208), (64, 336412936), (76, 283295104), (128, 168206468), (152, 141647552), (256, 84103234), (304, 70823776), (512, 42051617), (608, 35411888), (1216, 17705944), (2432, 8852972), (4864, 4426486), (9728, 2213243)]