21727683

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:569

約数の個数: 40

約数和(自身を含む): 35544960

約数和(自身を除く): 13817277

約数列:

[1, 3, 9, 17, 27, 31, 51, 81, 93, 153, 279, 459, 509, 527, 837, 1377, 1527, 1581, 2511, 4581, 4743, 8653, 13743, 14229, 15779, 25959, 41229, 42687, 47337, 77877, 142011, 233631, 268243, 426033, 700893, 804729, 1278099, 2414187, 7242561, 21727683]

約数ペア:

[(1, 21727683), (3, 7242561), (9, 2414187), (17, 1278099), (27, 804729), (31, 700893), (51, 426033), (81, 268243), (93, 233631), (153, 142011), (279, 77877), (459, 47337), (509, 42687), (527, 41229), (837, 25959), (1377, 15779), (1527, 14229), (1581, 13743), (2511, 8653), (4581, 4743)]