18564964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{251}}^1$

素因数の和:348

約数の個数: 36

約数和(自身を含む): 36472464

約数和(自身を除く): 17907500

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 251, 451, 502, 902, 1004, 1681, 1804, 2761, 3362, 5522, 6724, 10291, 11044, 18491, 20582, 36982, 41164, 73964, 113201, 226402, 421931, 452804, 843862, 1687724, 4641241, 9282482, 18564964]

約数ペア:

[(1, 18564964), (2, 9282482), (4, 4641241), (11, 1687724), (22, 843862), (41, 452804), (44, 421931), (82, 226402), (164, 113201), (251, 73964), (451, 41164), (502, 36982), (902, 20582), (1004, 18491), (1681, 11044), (1804, 10291), (2761, 6724), (3362, 5522)]