199287179

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 251306496

約数和(自身を除く): 52019317

約数列:

[1, 7, 13, 91, 97, 107, 211, 679, 749, 1261, 1391, 1477, 2743, 8827, 9737, 10379, 19201, 20467, 22577, 72653, 134927, 143269, 158039, 266071, 293501, 944489, 1862497, 2054507, 2189969, 15329783, 28469597, 199287179]

約数ペア:

[(1, 199287179), (7, 28469597), (13, 15329783), (91, 2189969), (97, 2054507), (107, 1862497), (211, 944489), (679, 293501), (749, 266071), (1261, 158039), (1391, 143269), (1477, 134927), (2743, 72653), (8827, 22577), (9737, 20467), (10379, 19201)]