19418516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 38572800

約数和(自身を除く): 19154284

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 79, 116, 158, 163, 316, 326, 377, 652, 754, 1027, 1508, 2054, 2119, 2291, 4108, 4238, 4582, 4727, 8476, 9164, 9454, 12877, 18908, 25754, 29783, 51508, 59566, 61451, 119132, 122902, 167401, 245804, 334802, 373433, 669604, 746866, 1493732, 4854629, 9709258, 19418516]

約数ペア:

[(1, 19418516), (2, 9709258), (4, 4854629), (13, 1493732), (26, 746866), (29, 669604), (52, 373433), (58, 334802), (79, 245804), (116, 167401), (158, 122902), (163, 119132), (316, 61451), (326, 59566), (377, 51508), (652, 29783), (754, 25754), (1027, 18908), (1508, 12877), (2054, 9454), (2119, 9164), (2291, 8476), (4108, 4727), (4238, 4582)]