21000659364

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{467}}^1\times {\mathrm{30467}}^1$

素因数の和:30985

約数の個数: 72

約数和(自身を含む): 54497989728

約数和(自身を除く): 33497330364

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 467, 492, 738, 934, 1401, 1476, 1868, 2802, 4203, 5604, 8406, 16812, 19147, 30467, 38294, 57441, 60934, 76588, 91401, 114882, 121868, 172323, 182802, 229764, 274203, 344646, 365604, 548406, 689292, 1096812, 1249147, 2498294, 3747441, 4996588, 7494882, 11242323, 14228089, 14989764, 22484646, 28456178, 42684267, 44969292, 56912356, 85368534, 128052801, 170737068, 256105602, 512211204, 583351649, 1166703298, 1750054947, 2333406596, 3500109894, 5250164841, 7000219788, 10500329682, 21000659364]

約数ペア:

[(1, 21000659364), (2, 10500329682), (3, 7000219788), (4, 5250164841), (6, 3500109894), (9, 2333406596), (12, 1750054947), (18, 1166703298), (36, 583351649), (41, 512211204), (82, 256105602), (123, 170737068), (164, 128052801), (246, 85368534), (369, 56912356), (467, 44969292), (492, 42684267), (738, 28456178), (934, 22484646), (1401, 14989764), (1476, 14228089), (1868, 11242323), (2802, 7494882), (4203, 4996588), (5604, 3747441), (8406, 2498294), (16812, 1249147), (19147, 1096812), (30467, 689292), (38294, 548406), (57441, 365604), (60934, 344646), (76588, 274203), (91401, 229764), (114882, 182802), (121868, 172323)]