21467844

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:345

約数の個数: 72

約数和(自身を含む): 56766528

約数和(自身を除く): 35298684

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 71, 74, 111, 142, 148, 213, 222, 227, 284, 333, 426, 444, 454, 639, 666, 681, 852, 908, 1278, 1332, 1362, 2043, 2556, 2627, 2724, 4086, 5254, 7881, 8172, 8399, 10508, 15762, 16117, 16798, 23643, 25197, 31524, 32234, 33596, 47286, 48351, 50394, 64468, 75591, 94572, 96702, 100788, 145053, 151182, 193404, 290106, 302364, 580212, 596329, 1192658, 1788987, 2385316, 3577974, 5366961, 7155948, 10733922, 21467844]

約数ペア:

[(1, 21467844), (2, 10733922), (3, 7155948), (4, 5366961), (6, 3577974), (9, 2385316), (12, 1788987), (18, 1192658), (36, 596329), (37, 580212), (71, 302364), (74, 290106), (111, 193404), (142, 151182), (148, 145053), (213, 100788), (222, 96702), (227, 94572), (284, 75591), (333, 64468), (426, 50394), (444, 48351), (454, 47286), (639, 33596), (666, 32234), (681, 31524), (852, 25197), (908, 23643), (1278, 16798), (1332, 16117), (1362, 15762), (2043, 10508), (2556, 8399), (2627, 8172), (2724, 7881), (4086, 5254)]