420049917

素因数分解:

$3^2\times 7^1\times {\mathrm{691}}^1\times {\mathrm{9649}}^1$

素因数の和:10353

約数の個数: 24

約数和(自身を含む): 694491200

約数和(自身を除く): 274441283

約数列:

[1, 3, 7, 9, 21, 63, 691, 2073, 4837, 6219, 9649, 14511, 28947, 43533, 67543, 86841, 202629, 607887, 6667459, 20002377, 46672213, 60007131, 140016639, 420049917]

約数ペア:

[(1, 420049917), (3, 140016639), (7, 60007131), (9, 46672213), (21, 20002377), (63, 6667459), (691, 607887), (2073, 202629), (4837, 86841), (6219, 67543), (9649, 43533), (14511, 28947)]