21216879682

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{490201}}^1$

素因数の和:490306

約数の個数: 32

約数和(自身を含む): 36000434880

約数和(自身を除く): 14783555198

約数列:

[1, 2, 17, 19, 34, 38, 67, 134, 323, 646, 1139, 1273, 2278, 2546, 21641, 43282, 490201, 980402, 8333417, 9313819, 16666834, 18627638, 32843467, 65686934, 158334923, 316669846, 558338939, 624025873, 1116677878, 1248051746, 10608439841, 21216879682]

約数ペア:

[(1, 21216879682), (2, 10608439841), (17, 1248051746), (19, 1116677878), (34, 624025873), (38, 558338939), (67, 316669846), (134, 158334923), (323, 65686934), (646, 32843467), (1139, 18627638), (1273, 16666834), (2278, 9313819), (2546, 8333417), (21641, 980402), (43282, 490201)]