20828466

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1$

素因数の和:431

約数の個数: 48

約数和(自身を含む): 47074560

約数和(自身を除く): 26246094

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 163, 186, 229, 279, 326, 458, 489, 558, 687, 978, 1374, 1467, 2061, 2934, 4122, 5053, 7099, 10106, 14198, 15159, 21297, 30318, 37327, 42594, 45477, 63891, 74654, 90954, 111981, 127782, 223962, 335943, 671886, 1157137, 2314274, 3471411, 6942822, 10414233, 20828466]

約数ペア:

[(1, 20828466), (2, 10414233), (3, 6942822), (6, 3471411), (9, 2314274), (18, 1157137), (31, 671886), (62, 335943), (93, 223962), (163, 127782), (186, 111981), (229, 90954), (279, 74654), (326, 63891), (458, 45477), (489, 42594), (558, 37327), (687, 30318), (978, 21297), (1374, 15159), (1467, 14198), (2061, 10106), (2934, 7099), (4122, 5053)]