20150451

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:205

約数の個数: 40

約数和(自身を含む): 31595520

約数和(自身を除く): 11445069

約数列:

[1, 3, 9, 27, 47, 67, 79, 81, 141, 201, 237, 423, 603, 711, 1269, 1809, 2133, 3149, 3713, 3807, 5293, 5427, 6399, 9447, 11139, 15879, 28341, 33417, 47637, 85023, 100251, 142911, 248771, 255069, 300753, 428733, 746313, 2238939, 6716817, 20150451]

約数ペア:

[(1, 20150451), (3, 6716817), (9, 2238939), (27, 746313), (47, 428733), (67, 300753), (79, 255069), (81, 248771), (141, 142911), (201, 100251), (237, 85023), (423, 47637), (603, 33417), (711, 28341), (1269, 15879), (1809, 11139), (2133, 9447), (3149, 6399), (3713, 5427), (3807, 5293)]