211720154

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{809}}^1$

素因数の和:998

約数の個数: 32

約数和(自身を含む): 342921600

約数和(自身を除く): 131201446

約数列:

[1, 2, 19, 38, 71, 97, 142, 194, 809, 1349, 1618, 1843, 2698, 3686, 6887, 13774, 15371, 30742, 57439, 78473, 114878, 130853, 156946, 261706, 1091341, 1490987, 2182682, 2981974, 5571583, 11143166, 105860077, 211720154]

約数ペア:

[(1, 211720154), (2, 105860077), (19, 11143166), (38, 5571583), (71, 2981974), (97, 2182682), (142, 1490987), (194, 1091341), (809, 261706), (1349, 156946), (1618, 130853), (1843, 114878), (2698, 78473), (3686, 57439), (6887, 30742), (13774, 15371)]