221666145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{5333}}^1$

素因数の和:5521

約数の個数: 32

約数和(自身を含む): 377903232

約数和(自身を除く): 156237087

約数列:

[1, 3, 5, 15, 17, 51, 85, 163, 255, 489, 815, 2445, 2771, 5333, 8313, 13855, 15999, 26665, 41565, 79995, 90661, 271983, 453305, 869279, 1359915, 2607837, 4346395, 13039185, 14777743, 44333229, 73888715, 221666145]

約数ペア:

[(1, 221666145), (3, 73888715), (5, 44333229), (15, 14777743), (17, 13039185), (51, 4346395), (85, 2607837), (163, 1359915), (255, 869279), (489, 453305), (815, 271983), (2445, 90661), (2771, 79995), (5333, 41565), (8313, 26665), (13855, 15999)]