19873227204

素因数分解:

$2^2\times 3^5\times {\mathrm{251}}^1\times {\mathrm{81457}}^1$

素因数の和:81727

約数の個数: 72

約数和(自身を含む): 52303855968

約数和(自身を除く): 32430628764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 251, 324, 486, 502, 753, 972, 1004, 1506, 2259, 3012, 4518, 6777, 9036, 13554, 20331, 27108, 40662, 60993, 81324, 81457, 121986, 162914, 243972, 244371, 325828, 488742, 733113, 977484, 1466226, 2199339, 2932452, 4398678, 6598017, 8797356, 13196034, 19794051, 20445707, 26392068, 39588102, 40891414, 61337121, 79176204, 81782828, 122674242, 184011363, 245348484, 368022726, 552034089, 736045452, 1104068178, 1656102267, 2208136356, 3312204534, 4968306801, 6624409068, 9936613602, 19873227204]

約数ペア:

[(1, 19873227204), (2, 9936613602), (3, 6624409068), (4, 4968306801), (6, 3312204534), (9, 2208136356), (12, 1656102267), (18, 1104068178), (27, 736045452), (36, 552034089), (54, 368022726), (81, 245348484), (108, 184011363), (162, 122674242), (243, 81782828), (251, 79176204), (324, 61337121), (486, 40891414), (502, 39588102), (753, 26392068), (972, 20445707), (1004, 19794051), (1506, 13196034), (2259, 8797356), (3012, 6598017), (4518, 4398678), (6777, 2932452), (9036, 2199339), (13554, 1466226), (20331, 977484), (27108, 733113), (40662, 488742), (60993, 325828), (81324, 244371), (81457, 243972), (121986, 162914)]