17981946

素因数分解:

$2^1\times 3^3\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 41783040

約数和(自身を除く): 23801094

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 61, 103, 106, 122, 159, 183, 206, 309, 318, 366, 477, 549, 618, 927, 954, 1098, 1431, 1647, 1854, 2781, 2862, 3233, 3294, 5459, 5562, 6283, 6466, 9699, 10918, 12566, 16377, 18849, 19398, 29097, 32754, 37698, 49131, 56547, 58194, 87291, 98262, 113094, 147393, 169641, 174582, 294786, 332999, 339282, 665998, 998997, 1997994, 2996991, 5993982, 8990973, 17981946]

約数ペア:

[(1, 17981946), (2, 8990973), (3, 5993982), (6, 2996991), (9, 1997994), (18, 998997), (27, 665998), (53, 339282), (54, 332999), (61, 294786), (103, 174582), (106, 169641), (122, 147393), (159, 113094), (183, 98262), (206, 87291), (309, 58194), (318, 56547), (366, 49131), (477, 37698), (549, 32754), (618, 29097), (927, 19398), (954, 18849), (1098, 16377), (1431, 12566), (1647, 10918), (1854, 9699), (2781, 6466), (2862, 6283), (3233, 5562), (3294, 5459)]