19980224

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:405

約数の個数: 56

約数和(自身を含む): 43836336

約数和(自身を除く): 23856112

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 101, 176, 202, 281, 352, 404, 562, 704, 808, 1111, 1124, 1616, 2222, 2248, 3091, 3232, 4444, 4496, 6182, 6464, 8888, 8992, 12364, 17776, 17984, 24728, 28381, 35552, 49456, 56762, 71104, 98912, 113524, 197824, 227048, 312191, 454096, 624382, 908192, 1248764, 1816384, 2497528, 4995056, 9990112, 19980224]

約数ペア:

[(1, 19980224), (2, 9990112), (4, 4995056), (8, 2497528), (11, 1816384), (16, 1248764), (22, 908192), (32, 624382), (44, 454096), (64, 312191), (88, 227048), (101, 197824), (176, 113524), (202, 98912), (281, 71104), (352, 56762), (404, 49456), (562, 35552), (704, 28381), (808, 24728), (1111, 17984), (1124, 17776), (1616, 12364), (2222, 8992), (2248, 8888), (3091, 6464), (3232, 6182), (4444, 4496)]