21013198320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1651981}}^1$

素因数の和:1652050

約数の個数: 80

約数和(自身を含む): 66370028832

約数和(自身を除く): 45356830512

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 80, 106, 120, 159, 212, 240, 265, 318, 424, 530, 636, 795, 848, 1060, 1272, 1590, 2120, 2544, 3180, 4240, 6360, 12720, 1651981, 3303962, 4955943, 6607924, 8259905, 9911886, 13215848, 16519810, 19823772, 24779715, 26431696, 33039620, 39647544, 49559430, 66079240, 79295088, 87554993, 99118860, 132158480, 175109986, 198237720, 262664979, 350219972, 396475440, 437774965, 525329958, 700439944, 875549930, 1050659916, 1313324895, 1400879888, 1751099860, 2101319832, 2626649790, 3502199720, 4202639664, 5253299580, 7004399440, 10506599160, 21013198320]

約数ペア:

[(1, 21013198320), (2, 10506599160), (3, 7004399440), (4, 5253299580), (5, 4202639664), (6, 3502199720), (8, 2626649790), (10, 2101319832), (12, 1751099860), (15, 1400879888), (16, 1313324895), (20, 1050659916), (24, 875549930), (30, 700439944), (40, 525329958), (48, 437774965), (53, 396475440), (60, 350219972), (80, 262664979), (106, 198237720), (120, 175109986), (159, 132158480), (212, 99118860), (240, 87554993), (265, 79295088), (318, 66079240), (424, 49559430), (530, 39647544), (636, 33039620), (795, 26431696), (848, 24779715), (1060, 19823772), (1272, 16519810), (1590, 13215848), (2120, 9911886), (2544, 8259905), (3180, 6607924), (4240, 4955943), (6360, 3303962), (12720, 1651981)]