217901780991

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{144427}}^1$

素因数の和:144645

約数の個数: 64

約数和(自身を含む): 361878796800

約数和(自身を除く): 143977015809

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 153, 171, 173, 323, 459, 513, 519, 969, 1557, 2907, 2941, 3287, 4671, 8721, 8823, 9861, 26469, 29583, 55879, 79407, 88749, 144427, 167637, 433281, 502911, 1299843, 1508733, 2455259, 2744113, 3899529, 7365777, 8232339, 22097331, 24697017, 24985871, 46649921, 66291993, 74091051, 74957613, 139949763, 224872839, 419849289, 424759807, 474731549, 674618517, 1259547867, 1274279421, 1424194647, 3822838263, 4272583941, 8070436333, 11468514789, 12817751823, 24211308999, 72633926997, 217901780991]

約数ペア:

[(1, 217901780991), (3, 72633926997), (9, 24211308999), (17, 12817751823), (19, 11468514789), (27, 8070436333), (51, 4272583941), (57, 3822838263), (153, 1424194647), (171, 1274279421), (173, 1259547867), (323, 674618517), (459, 474731549), (513, 424759807), (519, 419849289), (969, 224872839), (1557, 139949763), (2907, 74957613), (2941, 74091051), (3287, 66291993), (4671, 46649921), (8721, 24985871), (8823, 24697017), (9861, 22097331), (26469, 8232339), (29583, 7365777), (55879, 3899529), (79407, 2744113), (88749, 2455259), (144427, 1508733), (167637, 1299843), (433281, 502911)]