21177156741

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{70879}}^1$

素因数の和:71105

約数の個数: 32

約数和(自身を含む): 31246172160

約数和(自身を除く): 10069015419

約数列:

[1, 3, 13, 39, 47, 141, 163, 489, 611, 1833, 2119, 6357, 7661, 22983, 70879, 99593, 212637, 298779, 921427, 2764281, 3331313, 9993939, 11553277, 34659831, 43307069, 129921207, 150192601, 450577803, 543004019, 1629012057, 7059052247, 21177156741]

約数ペア:

[(1, 21177156741), (3, 7059052247), (13, 1629012057), (39, 543004019), (47, 450577803), (141, 150192601), (163, 129921207), (489, 43307069), (611, 34659831), (1833, 11553277), (2119, 9993939), (6357, 3331313), (7661, 2764281), (22983, 921427), (70879, 298779), (99593, 212637)]