201712203

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:645

約数の個数: 72

約数和(自身を含む): 374459904

約数和(自身を除く): 172747701

約数列:

[1, 3, 7, 9, 11, 21, 33, 47, 63, 77, 99, 121, 141, 231, 329, 363, 423, 517, 563, 693, 847, 987, 1089, 1551, 1689, 2541, 2961, 3619, 3941, 4653, 5067, 5687, 6193, 7623, 10857, 11823, 17061, 18579, 26461, 32571, 35469, 39809, 43351, 51183, 55737, 68123, 79383, 119427, 130053, 185227, 204369, 238149, 291071, 358281, 390159, 476861, 555681, 613107, 873213, 1430583, 1667043, 2037497, 2619639, 3201781, 4291749, 6112491, 9605343, 18337473, 22412467, 28816029, 67237401, 201712203]

約数ペア:

[(1, 201712203), (3, 67237401), (7, 28816029), (9, 22412467), (11, 18337473), (21, 9605343), (33, 6112491), (47, 4291749), (63, 3201781), (77, 2619639), (99, 2037497), (121, 1667043), (141, 1430583), (231, 873213), (329, 613107), (363, 555681), (423, 476861), (517, 390159), (563, 358281), (693, 291071), (847, 238149), (987, 204369), (1089, 185227), (1551, 130053), (1689, 119427), (2541, 79383), (2961, 68123), (3619, 55737), (3941, 51183), (4653, 43351), (5067, 39809), (5687, 35469), (6193, 32571), (7623, 26461), (10857, 18579), (11823, 17061)]