21402512

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3061}}^1$

素因数の和:3111

約数の個数: 40

約数和(自身を含む): 45562560

約数和(自身を除く): 24160048

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 3061, 3496, 6122, 6992, 12244, 24488, 48976, 58159, 70403, 116318, 140806, 232636, 281612, 465272, 563224, 930544, 1126448, 1337657, 2675314, 5350628, 10701256, 21402512]

約数ペア:

[(1, 21402512), (2, 10701256), (4, 5350628), (8, 2675314), (16, 1337657), (19, 1126448), (23, 930544), (38, 563224), (46, 465272), (76, 281612), (92, 232636), (152, 140806), (184, 116318), (304, 70403), (368, 58159), (437, 48976), (874, 24488), (1748, 12244), (3061, 6992), (3496, 6122)]