990507726

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{21487}}^1$

素因数の和:21705

約数の個数: 48

約数和(自身を含む): 2323024704

約数和(自身を除く): 1332516978

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 197, 234, 394, 591, 1182, 1773, 2561, 3546, 5122, 7683, 15366, 21487, 23049, 42974, 46098, 64461, 128922, 193383, 279331, 386766, 558662, 837993, 1675986, 2513979, 4232939, 5027958, 8465878, 12698817, 25397634, 38096451, 55028207, 76192902, 110056414, 165084621, 330169242, 495253863, 990507726]

約数ペア:

[(1, 990507726), (2, 495253863), (3, 330169242), (6, 165084621), (9, 110056414), (13, 76192902), (18, 55028207), (26, 38096451), (39, 25397634), (78, 12698817), (117, 8465878), (197, 5027958), (234, 4232939), (394, 2513979), (591, 1675986), (1182, 837993), (1773, 558662), (2561, 386766), (3546, 279331), (5122, 193383), (7683, 128922), (15366, 64461), (21487, 46098), (23049, 42974)]