21766970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 23955910

約数列:

[1, 2, 5, 10, 17, 19, 23, 34, 38, 46, 85, 95, 115, 170, 190, 230, 293, 323, 391, 437, 586, 646, 782, 874, 1465, 1615, 1955, 2185, 2930, 3230, 3910, 4370, 4981, 5567, 6739, 7429, 9962, 11134, 13478, 14858, 24905, 27835, 33695, 37145, 49810, 55670, 67390, 74290, 94639, 114563, 128041, 189278, 229126, 256082, 473195, 572815, 640205, 946390, 1145630, 1280410, 2176697, 4353394, 10883485, 21766970]

約数ペア:

[(1, 21766970), (2, 10883485), (5, 4353394), (10, 2176697), (17, 1280410), (19, 1145630), (23, 946390), (34, 640205), (38, 572815), (46, 473195), (85, 256082), (95, 229126), (115, 189278), (170, 128041), (190, 114563), (230, 94639), (293, 74290), (323, 67390), (391, 55670), (437, 49810), (586, 37145), (646, 33695), (782, 27835), (874, 24905), (1465, 14858), (1615, 13478), (1955, 11134), (2185, 9962), (2930, 7429), (3230, 6739), (3910, 5567), (4370, 4981)]