21936987

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:297

約数の個数: 40

約数和(自身を含む): 35283600

約数和(自身を除く): 13346613

約数列:

[1, 3, 9, 17, 27, 51, 81, 89, 153, 179, 267, 459, 537, 801, 1377, 1513, 1611, 2403, 3043, 4539, 4833, 7209, 9129, 13617, 14499, 15931, 27387, 40851, 47793, 82161, 122553, 143379, 246483, 270827, 430137, 812481, 1290411, 2437443, 7312329, 21936987]

約数ペア:

[(1, 21936987), (3, 7312329), (9, 2437443), (17, 1290411), (27, 812481), (51, 430137), (81, 270827), (89, 246483), (153, 143379), (179, 122553), (267, 82161), (459, 47793), (537, 40851), (801, 27387), (1377, 15931), (1513, 14499), (1611, 13617), (2403, 9129), (3043, 7209), (4539, 4833)]