398437914

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{31517}}^1$

素因数の和:31579

約数の個数: 48

約数和(自身を含む): 948565728

約数和(自身を除く): 550127814

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 49, 86, 98, 129, 147, 258, 294, 301, 602, 903, 1806, 2107, 4214, 6321, 12642, 31517, 63034, 94551, 189102, 220619, 441238, 661857, 1323714, 1355231, 1544333, 2710462, 3088666, 4065693, 4632999, 8131386, 9265998, 9486617, 18973234, 28459851, 56919702, 66406319, 132812638, 199218957, 398437914]

約数ペア:

[(1, 398437914), (2, 199218957), (3, 132812638), (6, 66406319), (7, 56919702), (14, 28459851), (21, 18973234), (42, 9486617), (43, 9265998), (49, 8131386), (86, 4632999), (98, 4065693), (129, 3088666), (147, 2710462), (258, 1544333), (294, 1355231), (301, 1323714), (602, 661857), (903, 441238), (1806, 220619), (2107, 189102), (4214, 94551), (6321, 63034), (12642, 31517)]