19811528

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:111

約数の個数: 96

約数和(自身を含む): 46418400

約数和(自身を除く): 26606872

約数列:

[1, 2, 4, 8, 11, 17, 19, 22, 34, 38, 41, 44, 68, 76, 82, 88, 136, 152, 164, 187, 209, 289, 323, 328, 374, 418, 451, 578, 646, 697, 748, 779, 836, 902, 1156, 1292, 1394, 1496, 1558, 1672, 1804, 2312, 2584, 2788, 3116, 3179, 3553, 3608, 5491, 5576, 6232, 6358, 7106, 7667, 8569, 10982, 11849, 12716, 13243, 14212, 15334, 17138, 21964, 23698, 25432, 26486, 28424, 30668, 34276, 43928, 47396, 52972, 60401, 61336, 68552, 94792, 105944, 120802, 130339, 145673, 225131, 241604, 260678, 291346, 450262, 483208, 521356, 582692, 900524, 1042712, 1165384, 1801048, 2476441, 4952882, 9905764, 19811528]

約数ペア:

[(1, 19811528), (2, 9905764), (4, 4952882), (8, 2476441), (11, 1801048), (17, 1165384), (19, 1042712), (22, 900524), (34, 582692), (38, 521356), (41, 483208), (44, 450262), (68, 291346), (76, 260678), (82, 241604), (88, 225131), (136, 145673), (152, 130339), (164, 120802), (187, 105944), (209, 94792), (289, 68552), (323, 61336), (328, 60401), (374, 52972), (418, 47396), (451, 43928), (578, 34276), (646, 30668), (697, 28424), (748, 26486), (779, 25432), (836, 23698), (902, 21964), (1156, 17138), (1292, 15334), (1394, 14212), (1496, 13243), (1558, 12716), (1672, 11849), (1804, 10982), (2312, 8569), (2584, 7667), (2788, 7106), (3116, 6358), (3179, 6232), (3553, 5576), (3608, 5491)]