19546516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 39836160

約数和(自身を除く): 20289644

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 103, 206, 209, 227, 412, 418, 454, 836, 908, 1133, 1957, 2266, 2497, 3914, 4313, 4532, 4994, 7828, 8626, 9988, 17252, 21527, 23381, 43054, 46762, 47443, 86108, 93524, 94886, 189772, 257191, 444239, 514382, 888478, 1028764, 1776956, 4886629, 9773258, 19546516]

約数ペア:

[(1, 19546516), (2, 9773258), (4, 4886629), (11, 1776956), (19, 1028764), (22, 888478), (38, 514382), (44, 444239), (76, 257191), (103, 189772), (206, 94886), (209, 93524), (227, 86108), (412, 47443), (418, 46762), (454, 43054), (836, 23381), (908, 21527), (1133, 17252), (1957, 9988), (2266, 8626), (2497, 7828), (3914, 4994), (4313, 4532)]