1221129

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:107

約数の個数: 48

約数和(自身を含む): 2298240

約数和(自身を除く): 1077111

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 71, 91, 117, 147, 189, 213, 273, 351, 441, 497, 637, 639, 819, 923, 1323, 1491, 1911, 1917, 2457, 2769, 3479, 4473, 5733, 6461, 8307, 10437, 13419, 17199, 19383, 24921, 31311, 45227, 58149, 93933, 135681, 174447, 407043, 1221129]

約数ペア:

[(1, 1221129), (3, 407043), (7, 174447), (9, 135681), (13, 93933), (21, 58149), (27, 45227), (39, 31311), (49, 24921), (63, 19383), (71, 17199), (91, 13419), (117, 10437), (147, 8307), (189, 6461), (213, 5733), (273, 4473), (351, 3479), (441, 2769), (497, 2457), (637, 1917), (639, 1911), (819, 1491), (923, 1323)]