19691505

素因数分解:

$3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{853}}^1$

素因数の和:892

約数の個数: 48

約数和(自身を含む): 37302720

約数和(自身を除く): 17611215

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 243, 285, 405, 513, 853, 855, 1215, 1539, 2559, 2565, 4265, 4617, 7677, 7695, 12795, 16207, 23031, 23085, 38385, 48621, 69093, 81035, 115155, 145863, 207279, 243105, 345465, 437589, 729315, 1036395, 1312767, 2187945, 3938301, 6563835, 19691505]

約数ペア:

[(1, 19691505), (3, 6563835), (5, 3938301), (9, 2187945), (15, 1312767), (19, 1036395), (27, 729315), (45, 437589), (57, 345465), (81, 243105), (95, 207279), (135, 145863), (171, 115155), (243, 81035), (285, 69093), (405, 48621), (513, 38385), (853, 23085), (855, 23031), (1215, 16207), (1539, 12795), (2559, 7695), (2565, 7677), (4265, 4617)]