21000879792

素因数分解:

$2^4\times 3^2\times {\mathrm{613}}^1\times {\mathrm{237911}}^1$

素因数の和:238538

約数の個数: 60

約数和(自身を含む): 58869421104

約数和(自身を除く): 37868541312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 613, 1226, 1839, 2452, 3678, 4904, 5517, 7356, 9808, 11034, 14712, 22068, 29424, 44136, 88272, 237911, 475822, 713733, 951644, 1427466, 1903288, 2141199, 2854932, 3806576, 4282398, 5709864, 8564796, 11419728, 17129592, 34259184, 145839443, 291678886, 437518329, 583357772, 875036658, 1166715544, 1312554987, 1750073316, 2333431088, 2625109974, 3500146632, 5250219948, 7000293264, 10500439896, 21000879792]

約数ペア:

[(1, 21000879792), (2, 10500439896), (3, 7000293264), (4, 5250219948), (6, 3500146632), (8, 2625109974), (9, 2333431088), (12, 1750073316), (16, 1312554987), (18, 1166715544), (24, 875036658), (36, 583357772), (48, 437518329), (72, 291678886), (144, 145839443), (613, 34259184), (1226, 17129592), (1839, 11419728), (2452, 8564796), (3678, 5709864), (4904, 4282398), (5517, 3806576), (7356, 2854932), (9808, 2141199), (11034, 1903288), (14712, 1427466), (22068, 951644), (29424, 713733), (44136, 475822), (88272, 237911)]