20181522477

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1\times {\mathrm{881}}^1$

素因数の和:1314

約数の個数: 64

約数和(自身を含む): 30359992320

約数和(自身を除く): 10178469843

約数列:

[1, 3, 17, 23, 51, 59, 69, 177, 331, 391, 881, 993, 1003, 1173, 1357, 2643, 3009, 4071, 5627, 7613, 14977, 16881, 19529, 20263, 22839, 23069, 44931, 51979, 58587, 60789, 69207, 129421, 155937, 291611, 331993, 344471, 388263, 449167, 874833, 883643, 995979, 1033413, 1195517, 1347501, 2650929, 3586551, 4957387, 6707053, 7635839, 14872161, 17205049, 20121159, 20323789, 22907517, 51615147, 60971367, 114019901, 292485833, 342059703, 395716127, 877457499, 1187148381, 6727174159, 20181522477]

約数ペア:

[(1, 20181522477), (3, 6727174159), (17, 1187148381), (23, 877457499), (51, 395716127), (59, 342059703), (69, 292485833), (177, 114019901), (331, 60971367), (391, 51615147), (881, 22907517), (993, 20323789), (1003, 20121159), (1173, 17205049), (1357, 14872161), (2643, 7635839), (3009, 6707053), (4071, 4957387), (5627, 3586551), (7613, 2650929), (14977, 1347501), (16881, 1195517), (19529, 1033413), (20263, 995979), (22839, 883643), (23069, 874833), (44931, 449167), (51979, 388263), (58587, 344471), (60789, 331993), (69207, 291611), (129421, 155937)]