20808238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:153

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 18382802

約数列:

[1, 2, 11, 17, 22, 23, 34, 41, 46, 59, 82, 118, 187, 253, 374, 391, 451, 506, 649, 697, 782, 902, 943, 1003, 1298, 1357, 1394, 1886, 2006, 2419, 2714, 4301, 4838, 7667, 8602, 10373, 11033, 14927, 15334, 16031, 20746, 22066, 23069, 26609, 29854, 32062, 41123, 46138, 53218, 55637, 82246, 111274, 176341, 253759, 352682, 452353, 507518, 612007, 904706, 945829, 1224014, 1891658, 10404119, 20808238]

約数ペア:

[(1, 20808238), (2, 10404119), (11, 1891658), (17, 1224014), (22, 945829), (23, 904706), (34, 612007), (41, 507518), (46, 452353), (59, 352682), (82, 253759), (118, 176341), (187, 111274), (253, 82246), (374, 55637), (391, 53218), (451, 46138), (506, 41123), (649, 32062), (697, 29854), (782, 26609), (902, 23069), (943, 22066), (1003, 20746), (1298, 16031), (1357, 15334), (1394, 14927), (1886, 11033), (2006, 10373), (2419, 8602), (2714, 7667), (4301, 4838)]