19305585

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 36695568

約数和(自身を除く): 17389983

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 61, 65, 117, 183, 195, 305, 541, 549, 585, 793, 915, 1623, 2379, 2705, 2745, 3965, 4869, 7033, 7137, 8115, 11895, 21099, 24345, 33001, 35165, 35685, 63297, 99003, 105495, 165005, 297009, 316485, 429013, 495015, 1287039, 1485045, 2145065, 3861117, 6435195, 19305585]

約数ペア:

[(1, 19305585), (3, 6435195), (5, 3861117), (9, 2145065), (13, 1485045), (15, 1287039), (39, 495015), (45, 429013), (61, 316485), (65, 297009), (117, 165005), (183, 105495), (195, 99003), (305, 63297), (541, 35685), (549, 35165), (585, 33001), (793, 24345), (915, 21099), (1623, 11895), (2379, 8115), (2705, 7137), (2745, 7033), (3965, 4869)]