18109964

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 35925120

約数和(自身を除く): 17815156

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 107, 131, 214, 262, 323, 428, 524, 646, 1292, 1819, 2033, 2227, 2489, 3638, 4066, 4454, 4978, 7276, 8132, 8908, 9956, 14017, 28034, 34561, 42313, 56068, 69122, 84626, 138244, 169252, 238289, 266323, 476578, 532646, 953156, 1065292, 4527491, 9054982, 18109964]

約数ペア:

[(1, 18109964), (2, 9054982), (4, 4527491), (17, 1065292), (19, 953156), (34, 532646), (38, 476578), (68, 266323), (76, 238289), (107, 169252), (131, 138244), (214, 84626), (262, 69122), (323, 56068), (428, 42313), (524, 34561), (646, 28034), (1292, 14017), (1819, 9956), (2033, 8908), (2227, 8132), (2489, 7276), (3638, 4978), (4066, 4454)]