19678893

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 29955072

約数和(自身を除く): 10276179

約数列:

[1, 3, 13, 31, 39, 41, 93, 123, 397, 403, 533, 1191, 1209, 1271, 1599, 3813, 5161, 12307, 15483, 16277, 16523, 36921, 48831, 49569, 159991, 211601, 479973, 504587, 634803, 1513761, 6559631, 19678893]

約数ペア:

[(1, 19678893), (3, 6559631), (13, 1513761), (31, 634803), (39, 504587), (41, 479973), (93, 211601), (123, 159991), (397, 49569), (403, 48831), (533, 36921), (1191, 16523), (1209, 16277), (1271, 15483), (1599, 12307), (3813, 5161)]