16978374

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{47}}^2\times {\mathrm{61}}^1$

素因数の和:170

約数の個数: 72

約数和(自身を含む): 43659408

約数和(自身を除く): 26681034

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 47, 61, 63, 94, 122, 126, 141, 183, 282, 329, 366, 423, 427, 549, 658, 846, 854, 987, 1098, 1281, 1974, 2209, 2562, 2867, 2961, 3843, 4418, 5734, 5922, 6627, 7686, 8601, 13254, 15463, 17202, 19881, 20069, 25803, 30926, 39762, 40138, 46389, 51606, 60207, 92778, 120414, 134749, 139167, 180621, 269498, 278334, 361242, 404247, 808494, 943243, 1212741, 1886486, 2425482, 2829729, 5659458, 8489187, 16978374]

約数ペア:

[(1, 16978374), (2, 8489187), (3, 5659458), (6, 2829729), (7, 2425482), (9, 1886486), (14, 1212741), (18, 943243), (21, 808494), (42, 404247), (47, 361242), (61, 278334), (63, 269498), (94, 180621), (122, 139167), (126, 134749), (141, 120414), (183, 92778), (282, 60207), (329, 51606), (366, 46389), (423, 40138), (427, 39762), (549, 30926), (658, 25803), (846, 20069), (854, 19881), (987, 17202), (1098, 15463), (1281, 13254), (1974, 8601), (2209, 7686), (2562, 6627), (2867, 5922), (2961, 5734), (3843, 4418)]