20381229

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 34444800

約数和(自身を除く): 14063571

約数列:

[1, 3, 9, 11, 29, 31, 33, 87, 93, 99, 229, 261, 279, 319, 341, 687, 899, 957, 1023, 2061, 2519, 2697, 2871, 3069, 6641, 7099, 7557, 8091, 9889, 19923, 21297, 22671, 29667, 59769, 63891, 73051, 78089, 89001, 205871, 219153, 234267, 617613, 657459, 702801, 1852839, 2264581, 6793743, 20381229]

約数ペア:

[(1, 20381229), (3, 6793743), (9, 2264581), (11, 1852839), (29, 702801), (31, 657459), (33, 617613), (87, 234267), (93, 219153), (99, 205871), (229, 89001), (261, 78089), (279, 73051), (319, 63891), (341, 59769), (687, 29667), (899, 22671), (957, 21297), (1023, 19923), (2061, 9889), (2519, 8091), (2697, 7557), (2871, 7099), (3069, 6641)]