19910765

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{379}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 29184000

約数和(自身を除く): 9273235

約数列:

[1, 5, 7, 19, 35, 79, 95, 133, 379, 395, 553, 665, 1501, 1895, 2653, 2765, 7201, 7505, 10507, 13265, 29941, 36005, 50407, 52535, 149705, 209587, 252035, 568879, 1047935, 2844395, 3982153, 19910765]

約数ペア:

[(1, 19910765), (5, 3982153), (7, 2844395), (19, 1047935), (35, 568879), (79, 252035), (95, 209587), (133, 149705), (379, 52535), (395, 50407), (553, 36005), (665, 29941), (1501, 13265), (1895, 10507), (2653, 7505), (2765, 7201)]