20627178

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{829}}^1$

素因数の和:887

約数の個数: 64

約数和(自身を含む): 50198400

約数和(自身を除く): 29571222

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 29, 33, 39, 58, 66, 78, 87, 143, 174, 286, 319, 377, 429, 638, 754, 829, 858, 957, 1131, 1658, 1914, 2262, 2487, 4147, 4974, 8294, 9119, 10777, 12441, 18238, 21554, 24041, 24882, 27357, 32331, 48082, 54714, 64662, 72123, 118547, 144246, 237094, 264451, 312533, 355641, 528902, 625066, 711282, 793353, 937599, 1586706, 1875198, 3437863, 6875726, 10313589, 20627178]

約数ペア:

[(1, 20627178), (2, 10313589), (3, 6875726), (6, 3437863), (11, 1875198), (13, 1586706), (22, 937599), (26, 793353), (29, 711282), (33, 625066), (39, 528902), (58, 355641), (66, 312533), (78, 264451), (87, 237094), (143, 144246), (174, 118547), (286, 72123), (319, 64662), (377, 54714), (429, 48082), (638, 32331), (754, 27357), (829, 24882), (858, 24041), (957, 21554), (1131, 18238), (1658, 12441), (1914, 10777), (2262, 9119), (2487, 8294), (4147, 4974)]