19984419

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1877}}^1$

素因数の和:1916

約数の個数: 36

約数和(自身を含む): 35742096

約数和(自身を除く): 15757677

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 169, 273, 507, 819, 1183, 1521, 1877, 3549, 5631, 10647, 13139, 16893, 24401, 39417, 73203, 118251, 170807, 219609, 317213, 512421, 951639, 1537263, 2220491, 2854917, 6661473, 19984419]

約数ペア:

[(1, 19984419), (3, 6661473), (7, 2854917), (9, 2220491), (13, 1537263), (21, 951639), (39, 512421), (63, 317213), (91, 219609), (117, 170807), (169, 118251), (273, 73203), (507, 39417), (819, 24401), (1183, 16893), (1521, 13139), (1877, 10647), (3549, 5631)]