21058460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{367}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 46986240

約数和(自身を除く): 25927780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 151, 190, 302, 367, 380, 604, 734, 755, 1468, 1510, 1835, 2869, 3020, 3670, 5738, 6973, 7340, 11476, 13946, 14345, 27892, 28690, 34865, 55417, 57380, 69730, 110834, 139460, 221668, 277085, 554170, 1052923, 1108340, 2105846, 4211692, 5264615, 10529230, 21058460]

約数ペア:

[(1, 21058460), (2, 10529230), (4, 5264615), (5, 4211692), (10, 2105846), (19, 1108340), (20, 1052923), (38, 554170), (76, 277085), (95, 221668), (151, 139460), (190, 110834), (302, 69730), (367, 57380), (380, 55417), (604, 34865), (734, 28690), (755, 27892), (1468, 14345), (1510, 13946), (1835, 11476), (2869, 7340), (3020, 6973), (3670, 5738)]