20177406

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 45302400

約数和(自身を除く): 25124994

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 131, 199, 258, 262, 387, 393, 398, 597, 774, 786, 1179, 1194, 1791, 2358, 3582, 5633, 8557, 11266, 16899, 17114, 25671, 26069, 33798, 50697, 51342, 52138, 77013, 78207, 101394, 154026, 156414, 234621, 469242, 1120967, 2241934, 3362901, 6725802, 10088703, 20177406]

約数ペア:

[(1, 20177406), (2, 10088703), (3, 6725802), (6, 3362901), (9, 2241934), (18, 1120967), (43, 469242), (86, 234621), (129, 156414), (131, 154026), (199, 101394), (258, 78207), (262, 77013), (387, 52138), (393, 51342), (398, 50697), (597, 33798), (774, 26069), (786, 25671), (1179, 17114), (1194, 16899), (1791, 11266), (2358, 8557), (3582, 5633)]