21709408

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5701}}^1$

素因数の和:5735

約数の個数: 48

約数和(自身を含む): 51728544

約数和(自身を除く): 30019136

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 68, 112, 119, 136, 224, 238, 272, 476, 544, 952, 1904, 3808, 5701, 11402, 22804, 39907, 45608, 79814, 91216, 96917, 159628, 182432, 193834, 319256, 387668, 638512, 678419, 775336, 1277024, 1356838, 1550672, 2713676, 3101344, 5427352, 10854704, 21709408]

約数ペア:

[(1, 21709408), (2, 10854704), (4, 5427352), (7, 3101344), (8, 2713676), (14, 1550672), (16, 1356838), (17, 1277024), (28, 775336), (32, 678419), (34, 638512), (56, 387668), (68, 319256), (112, 193834), (119, 182432), (136, 159628), (224, 96917), (238, 91216), (272, 79814), (476, 45608), (544, 39907), (952, 22804), (1904, 11402), (3808, 5701)]