19100991

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 33775616

約数和(自身を除く): 14674625

約数列:

[1, 3, 7, 13, 21, 31, 37, 39, 61, 91, 93, 111, 183, 217, 259, 273, 403, 427, 481, 651, 777, 793, 1147, 1209, 1281, 1443, 1891, 2257, 2379, 2821, 3367, 3441, 5551, 5673, 6771, 8029, 8463, 10101, 13237, 14911, 15799, 16653, 24087, 24583, 29341, 39711, 44733, 47397, 69967, 73749, 88023, 104377, 172081, 205387, 209901, 313131, 489769, 516243, 616161, 909571, 1469307, 2728713, 6366997, 19100991]

約数ペア:

[(1, 19100991), (3, 6366997), (7, 2728713), (13, 1469307), (21, 909571), (31, 616161), (37, 516243), (39, 489769), (61, 313131), (91, 209901), (93, 205387), (111, 172081), (183, 104377), (217, 88023), (259, 73749), (273, 69967), (403, 47397), (427, 44733), (481, 39711), (651, 29341), (777, 24583), (793, 24087), (1147, 16653), (1209, 15799), (1281, 14911), (1443, 13237), (1891, 10101), (2257, 8463), (2379, 8029), (2821, 6771), (3367, 5673), (3441, 5551)]