21204162

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{829}}^1$

素因数の和:880

約数の個数: 72

約数和(自身を含む): 55352700

約数和(自身を除く): 34148538

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 49, 58, 63, 87, 98, 126, 147, 174, 203, 261, 294, 406, 441, 522, 609, 829, 882, 1218, 1421, 1658, 1827, 2487, 2842, 3654, 4263, 4974, 5803, 7461, 8526, 11606, 12789, 14922, 17409, 24041, 25578, 34818, 40621, 48082, 52227, 72123, 81242, 104454, 121863, 144246, 168287, 216369, 243726, 336574, 365589, 432738, 504861, 731178, 1009722, 1178009, 1514583, 2356018, 3029166, 3534027, 7068054, 10602081, 21204162]

約数ペア:

[(1, 21204162), (2, 10602081), (3, 7068054), (6, 3534027), (7, 3029166), (9, 2356018), (14, 1514583), (18, 1178009), (21, 1009722), (29, 731178), (42, 504861), (49, 432738), (58, 365589), (63, 336574), (87, 243726), (98, 216369), (126, 168287), (147, 144246), (174, 121863), (203, 104454), (261, 81242), (294, 72123), (406, 52227), (441, 48082), (522, 40621), (609, 34818), (829, 25578), (882, 24041), (1218, 17409), (1421, 14922), (1658, 12789), (1827, 11606), (2487, 8526), (2842, 7461), (3654, 5803), (4263, 4974)]