21342438

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{409}}^1$

素因数の和:653

約数の個数: 48

約数和(自身を含む): 50144640

約数和(自身を除く): 28802202

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 223, 234, 409, 446, 669, 818, 1227, 1338, 2007, 2454, 2899, 3681, 4014, 5317, 5798, 7362, 8697, 10634, 15951, 17394, 26091, 31902, 47853, 52182, 91207, 95706, 182414, 273621, 547242, 820863, 1185691, 1641726, 2371382, 3557073, 7114146, 10671219, 21342438]

約数ペア:

[(1, 21342438), (2, 10671219), (3, 7114146), (6, 3557073), (9, 2371382), (13, 1641726), (18, 1185691), (26, 820863), (39, 547242), (78, 273621), (117, 182414), (223, 95706), (234, 91207), (409, 52182), (446, 47853), (669, 31902), (818, 26091), (1227, 17394), (1338, 15951), (2007, 10634), (2454, 8697), (2899, 7362), (3681, 5798), (4014, 5317)]