21341560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28081}}^1$

素因数の和:28111

約数の個数: 32

約数和(自身を含む): 50547600

約数和(自身を除く): 29206040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28081, 56162, 112324, 140405, 224648, 280810, 533539, 561620, 1067078, 1123240, 2134156, 2667695, 4268312, 5335390, 10670780, 21341560]

約数ペア:

[(1, 21341560), (2, 10670780), (4, 5335390), (5, 4268312), (8, 2667695), (10, 2134156), (19, 1123240), (20, 1067078), (38, 561620), (40, 533539), (76, 280810), (95, 224648), (152, 140405), (190, 112324), (380, 56162), (760, 28081)]