19257472

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 42154560

約数和(自身を除く): 22897088

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 128, 142, 163, 208, 284, 326, 416, 568, 652, 832, 923, 1136, 1304, 1664, 1846, 2119, 2272, 2608, 3692, 4238, 4544, 5216, 7384, 8476, 9088, 10432, 11573, 14768, 16952, 20864, 23146, 29536, 33904, 46292, 59072, 67808, 92584, 118144, 135616, 150449, 185168, 271232, 300898, 370336, 601796, 740672, 1203592, 1481344, 2407184, 4814368, 9628736, 19257472]

約数ペア:

[(1, 19257472), (2, 9628736), (4, 4814368), (8, 2407184), (13, 1481344), (16, 1203592), (26, 740672), (32, 601796), (52, 370336), (64, 300898), (71, 271232), (104, 185168), (128, 150449), (142, 135616), (163, 118144), (208, 92584), (284, 67808), (326, 59072), (416, 46292), (568, 33904), (652, 29536), (832, 23146), (923, 20864), (1136, 16952), (1304, 14768), (1664, 11573), (1846, 10432), (2119, 9088), (2272, 8476), (2608, 7384), (3692, 5216), (4238, 4544)]