21296928

素因数分解:

$2^5\times 3^1\times {\mathrm{163}}^1\times {\mathrm{1361}}^1$

素因数の和:1537

約数の個数: 48

約数和(自身を含む): 56288736

約数和(自身を除く): 34991808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 163, 326, 489, 652, 978, 1304, 1361, 1956, 2608, 2722, 3912, 4083, 5216, 5444, 7824, 8166, 10888, 15648, 16332, 21776, 32664, 43552, 65328, 130656, 221843, 443686, 665529, 887372, 1331058, 1774744, 2662116, 3549488, 5324232, 7098976, 10648464, 21296928]

約数ペア:

[(1, 21296928), (2, 10648464), (3, 7098976), (4, 5324232), (6, 3549488), (8, 2662116), (12, 1774744), (16, 1331058), (24, 887372), (32, 665529), (48, 443686), (96, 221843), (163, 130656), (326, 65328), (489, 43552), (652, 32664), (978, 21776), (1304, 16332), (1361, 15648), (1956, 10888), (2608, 8166), (2722, 7824), (3912, 5444), (4083, 5216)]