21272134

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:217

約数の個数: 48

約数和(自身を含む): 38682000

約数和(自身を除く): 17409866

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 149, 221, 247, 289, 298, 323, 442, 494, 578, 646, 1937, 2533, 2831, 3757, 3874, 4199, 5066, 5491, 5662, 7514, 8398, 10982, 32929, 36803, 43061, 48127, 65858, 71383, 73606, 86122, 96254, 142766, 559793, 625651, 818159, 1119586, 1251302, 1636318, 10636067, 21272134]

約数ペア:

[(1, 21272134), (2, 10636067), (13, 1636318), (17, 1251302), (19, 1119586), (26, 818159), (34, 625651), (38, 559793), (149, 142766), (221, 96254), (247, 86122), (289, 73606), (298, 71383), (323, 65858), (442, 48127), (494, 43061), (578, 36803), (646, 32929), (1937, 10982), (2533, 8398), (2831, 7514), (3757, 5662), (3874, 5491), (4199, 5066)]