20170647

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 37094400

約数和(自身を除く): 16923753

約数列:

[1, 3, 7, 9, 19, 21, 27, 41, 57, 63, 123, 133, 137, 171, 189, 287, 369, 399, 411, 513, 779, 861, 959, 1107, 1197, 1233, 2337, 2583, 2603, 2877, 3591, 3699, 5453, 5617, 7011, 7749, 7809, 8631, 16359, 16851, 18221, 21033, 23427, 25893, 39319, 49077, 50553, 54663, 70281, 106723, 117957, 147231, 151659, 163989, 320169, 353871, 491967, 747061, 960507, 1061613, 2241183, 2881521, 6723549, 20170647]

約数ペア:

[(1, 20170647), (3, 6723549), (7, 2881521), (9, 2241183), (19, 1061613), (21, 960507), (27, 747061), (41, 491967), (57, 353871), (63, 320169), (123, 163989), (133, 151659), (137, 147231), (171, 117957), (189, 106723), (287, 70281), (369, 54663), (399, 50553), (411, 49077), (513, 39319), (779, 25893), (861, 23427), (959, 21033), (1107, 18221), (1197, 16851), (1233, 16359), (2337, 8631), (2583, 7809), (2603, 7749), (2877, 7011), (3591, 5617), (3699, 5453)]