21974032

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1$

素因数の和:152

約数の個数: 60

約数和(自身を含む): 47003440

約数和(自身を除く): 25029408

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 43, 76, 82, 86, 152, 164, 172, 304, 328, 344, 656, 688, 779, 817, 1558, 1634, 1681, 1763, 3116, 3268, 3362, 3526, 6232, 6536, 6724, 7052, 12464, 13072, 13448, 14104, 26896, 28208, 31939, 33497, 63878, 66994, 72283, 127756, 133988, 144566, 255512, 267976, 289132, 511024, 535952, 578264, 1156528, 1373377, 2746754, 5493508, 10987016, 21974032]

約数ペア:

[(1, 21974032), (2, 10987016), (4, 5493508), (8, 2746754), (16, 1373377), (19, 1156528), (38, 578264), (41, 535952), (43, 511024), (76, 289132), (82, 267976), (86, 255512), (152, 144566), (164, 133988), (172, 127756), (304, 72283), (328, 66994), (344, 63878), (656, 33497), (688, 31939), (779, 28208), (817, 26896), (1558, 14104), (1634, 13448), (1681, 13072), (1763, 12464), (3116, 7052), (3268, 6724), (3362, 6536), (3526, 6232)]