21994983

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:269

約数の個数: 40

約数和(自身を含む): 34760880

約数和(自身を除く): 12765897

約数列:

[1, 3, 9, 27, 37, 41, 81, 111, 123, 179, 333, 369, 537, 999, 1107, 1517, 1611, 2997, 3321, 4551, 4833, 6623, 7339, 13653, 14499, 19869, 22017, 40959, 59607, 66051, 122877, 178821, 198153, 271543, 536463, 594459, 814629, 2443887, 7331661, 21994983]

約数ペア:

[(1, 21994983), (3, 7331661), (9, 2443887), (27, 814629), (37, 594459), (41, 536463), (81, 271543), (111, 198153), (123, 178821), (179, 122877), (333, 66051), (369, 59607), (537, 40959), (999, 22017), (1107, 19869), (1517, 14499), (1611, 13653), (2997, 7339), (3321, 6623), (4551, 4833)]