19865286

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:346

約数の個数: 72

約数和(自身を含む): 50791104

約数和(自身を除く): 30925818

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 101, 126, 147, 202, 223, 294, 303, 441, 446, 606, 669, 707, 882, 909, 1338, 1414, 1561, 1818, 2007, 2121, 3122, 4014, 4242, 4683, 4949, 6363, 9366, 9898, 10927, 12726, 14049, 14847, 21854, 22523, 28098, 29694, 32781, 44541, 45046, 65562, 67569, 89082, 98343, 135138, 157661, 196686, 202707, 315322, 405414, 472983, 945966, 1103627, 1418949, 2207254, 2837898, 3310881, 6621762, 9932643, 19865286]

約数ペア:

[(1, 19865286), (2, 9932643), (3, 6621762), (6, 3310881), (7, 2837898), (9, 2207254), (14, 1418949), (18, 1103627), (21, 945966), (42, 472983), (49, 405414), (63, 315322), (98, 202707), (101, 196686), (126, 157661), (147, 135138), (202, 98343), (223, 89082), (294, 67569), (303, 65562), (441, 45046), (446, 44541), (606, 32781), (669, 29694), (707, 28098), (882, 22523), (909, 21854), (1338, 14847), (1414, 14049), (1561, 12726), (1818, 10927), (2007, 9898), (2121, 9366), (3122, 6363), (4014, 4949), (4242, 4683)]