21457080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3137}}^1$

素因数の和:3173

約数の個数: 96

約数和(自身を含む): 73429200

約数和(自身を除く): 51972120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 3137, 3420, 6274, 6840, 9411, 12548, 15685, 18822, 25096, 28233, 31370, 37644, 47055, 56466, 59603, 62740, 75288, 94110, 112932, 119206, 125480, 141165, 178809, 188220, 225864, 238412, 282330, 298015, 357618, 376440, 476824, 536427, 564660, 596030, 715236, 894045, 1072854, 1129320, 1192060, 1430472, 1788090, 2145708, 2384120, 2682135, 3576180, 4291416, 5364270, 7152360, 10728540, 21457080]

約数ペア:

[(1, 21457080), (2, 10728540), (3, 7152360), (4, 5364270), (5, 4291416), (6, 3576180), (8, 2682135), (9, 2384120), (10, 2145708), (12, 1788090), (15, 1430472), (18, 1192060), (19, 1129320), (20, 1072854), (24, 894045), (30, 715236), (36, 596030), (38, 564660), (40, 536427), (45, 476824), (57, 376440), (60, 357618), (72, 298015), (76, 282330), (90, 238412), (95, 225864), (114, 188220), (120, 178809), (152, 141165), (171, 125480), (180, 119206), (190, 112932), (228, 94110), (285, 75288), (342, 62740), (360, 59603), (380, 56466), (456, 47055), (570, 37644), (684, 31370), (760, 28233), (855, 25096), (1140, 18822), (1368, 15685), (1710, 12548), (2280, 9411), (3137, 6840), (3420, 6274)]