21618603

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 33465600

約数和(自身を除く): 11846997

約数列:

[1, 3, 9, 27, 41, 59, 123, 177, 331, 369, 531, 993, 1107, 1593, 2419, 2979, 7257, 8937, 13571, 19529, 21771, 40713, 58587, 65313, 122139, 175761, 366417, 527283, 800689, 2402067, 7206201, 21618603]

約数ペア:

[(1, 21618603), (3, 7206201), (9, 2402067), (27, 800689), (41, 527283), (59, 366417), (123, 175761), (177, 122139), (331, 65313), (369, 58587), (531, 40713), (993, 21771), (1107, 19529), (1593, 13571), (2419, 8937), (2979, 7257)]