19722045

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 38191104

約数和(自身を除く): 18469059

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 73, 83, 93, 105, 155, 217, 219, 249, 365, 415, 465, 511, 581, 651, 1085, 1095, 1245, 1533, 1743, 2263, 2555, 2573, 2905, 3255, 6059, 6789, 7665, 7719, 8715, 11315, 12865, 15841, 18011, 18177, 30295, 33945, 38595, 42413, 47523, 54033, 79205, 90055, 90885, 127239, 187829, 212065, 237615, 270165, 563487, 636195, 939145, 1314803, 2817435, 3944409, 6574015, 19722045]

約数ペア:

[(1, 19722045), (3, 6574015), (5, 3944409), (7, 2817435), (15, 1314803), (21, 939145), (31, 636195), (35, 563487), (73, 270165), (83, 237615), (93, 212065), (105, 187829), (155, 127239), (217, 90885), (219, 90055), (249, 79205), (365, 54033), (415, 47523), (465, 42413), (511, 38595), (581, 33945), (651, 30295), (1085, 18177), (1095, 18011), (1245, 15841), (1533, 12865), (1743, 11315), (2263, 8715), (2555, 7719), (2573, 7665), (2905, 6789), (3255, 6059)]