18874254

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 26122866

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 61, 106, 122, 139, 159, 183, 278, 318, 366, 371, 417, 427, 742, 834, 854, 973, 1113, 1281, 1946, 2226, 2562, 2919, 3233, 5838, 6466, 7367, 8479, 9699, 14734, 16958, 19398, 22101, 22631, 25437, 44202, 45262, 50874, 51569, 59353, 67893, 103138, 118706, 135786, 154707, 178059, 309414, 356118, 449387, 898774, 1348161, 2696322, 3145709, 6291418, 9437127, 18874254]

約数ペア:

[(1, 18874254), (2, 9437127), (3, 6291418), (6, 3145709), (7, 2696322), (14, 1348161), (21, 898774), (42, 449387), (53, 356118), (61, 309414), (106, 178059), (122, 154707), (139, 135786), (159, 118706), (183, 103138), (278, 67893), (318, 59353), (366, 51569), (371, 50874), (417, 45262), (427, 44202), (742, 25437), (834, 22631), (854, 22101), (973, 19398), (1113, 16958), (1281, 14734), (1946, 9699), (2226, 8479), (2562, 7367), (2919, 6466), (3233, 5838)]