218315517

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:302

約数の個数: 64

約数和(自身を含む): 362741760

約数和(自身を除く): 144426243

約数列:

[1, 3, 7, 21, 23, 47, 59, 69, 141, 161, 163, 177, 329, 413, 483, 489, 987, 1081, 1141, 1239, 1357, 2773, 3243, 3423, 3749, 4071, 7567, 7661, 8319, 9499, 9617, 11247, 19411, 22701, 22983, 26243, 28497, 28851, 53627, 58233, 63779, 67319, 78729, 160881, 176203, 191337, 201957, 221191, 446453, 451999, 528609, 663573, 1233421, 1339359, 1355997, 1548337, 3163993, 3700263, 4645011, 9491979, 10395977, 31187931, 72771839, 218315517]

約数ペア:

[(1, 218315517), (3, 72771839), (7, 31187931), (21, 10395977), (23, 9491979), (47, 4645011), (59, 3700263), (69, 3163993), (141, 1548337), (161, 1355997), (163, 1339359), (177, 1233421), (329, 663573), (413, 528609), (483, 451999), (489, 446453), (987, 221191), (1081, 201957), (1141, 191337), (1239, 176203), (1357, 160881), (2773, 78729), (3243, 67319), (3423, 63779), (3749, 58233), (4071, 53627), (7567, 28851), (7661, 28497), (8319, 26243), (9499, 22983), (9617, 22701), (11247, 19411)]