21677380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{619}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 27069500

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 103, 170, 206, 340, 412, 515, 619, 1030, 1238, 1751, 2060, 2476, 3095, 3502, 6190, 7004, 8755, 10523, 12380, 17510, 21046, 35020, 42092, 52615, 63757, 105230, 127514, 210460, 255028, 318785, 637570, 1083869, 1275140, 2167738, 4335476, 5419345, 10838690, 21677380]

約数ペア:

[(1, 21677380), (2, 10838690), (4, 5419345), (5, 4335476), (10, 2167738), (17, 1275140), (20, 1083869), (34, 637570), (68, 318785), (85, 255028), (103, 210460), (170, 127514), (206, 105230), (340, 63757), (412, 52615), (515, 42092), (619, 35020), (1030, 21046), (1238, 17510), (1751, 12380), (2060, 10523), (2476, 8755), (3095, 7004), (3502, 6190)]