21379560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9377}}^1$

素因数の和:9410

約数の個数: 64

約数和(自身を含む): 67521600

約数和(自身を除く): 46142040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9377, 18754, 28131, 37508, 46885, 56262, 75016, 93770, 112524, 140655, 178163, 187540, 225048, 281310, 356326, 375080, 534489, 562620, 712652, 890815, 1068978, 1125240, 1425304, 1781630, 2137956, 2672445, 3563260, 4275912, 5344890, 7126520, 10689780, 21379560]

約数ペア:

[(1, 21379560), (2, 10689780), (3, 7126520), (4, 5344890), (5, 4275912), (6, 3563260), (8, 2672445), (10, 2137956), (12, 1781630), (15, 1425304), (19, 1125240), (20, 1068978), (24, 890815), (30, 712652), (38, 562620), (40, 534489), (57, 375080), (60, 356326), (76, 281310), (95, 225048), (114, 187540), (120, 178163), (152, 140655), (190, 112524), (228, 93770), (285, 75016), (380, 56262), (456, 46885), (570, 37508), (760, 28131), (1140, 18754), (2280, 9377)]