21211788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{599}}^1$

素因数の和:846

約数の個数: 48

約数和(自身を含む): 53625600

約数和(自身を除く): 32413812

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 227, 454, 599, 681, 908, 1198, 1362, 1797, 2396, 2724, 2951, 3594, 5902, 7188, 7787, 8853, 11804, 15574, 17706, 23361, 31148, 35412, 46722, 93444, 135973, 271946, 407919, 543892, 815838, 1631676, 1767649, 3535298, 5302947, 7070596, 10605894, 21211788]

約数ペア:

[(1, 21211788), (2, 10605894), (3, 7070596), (4, 5302947), (6, 3535298), (12, 1767649), (13, 1631676), (26, 815838), (39, 543892), (52, 407919), (78, 271946), (156, 135973), (227, 93444), (454, 46722), (599, 35412), (681, 31148), (908, 23361), (1198, 17706), (1362, 15574), (1797, 11804), (2396, 8853), (2724, 7787), (2951, 7188), (3594, 5902)]