21697077

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{419}}^1\times {\mathrm{421}}^1$

素因数の和:884

約数の個数: 16

約数和(自身を含む): 29776320

約数和(自身を除く): 8079243

約数列:

[1, 3, 41, 123, 419, 421, 1257, 1263, 17179, 17261, 51537, 51783, 176399, 529197, 7232359, 21697077]

約数ペア:

[(1, 21697077), (3, 7232359), (41, 529197), (123, 176399), (419, 51783), (421, 51537), (1257, 17261), (1263, 17179)]