21951150

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{11257}}^1$

素因数の和:11285

約数の個数: 48

約数和(自身を含む): 58631664

約数和(自身を除く): 36680514

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 11257, 22514, 33771, 56285, 67542, 112570, 146341, 168855, 281425, 292682, 337710, 439023, 562850, 731705, 844275, 878046, 1463410, 1688550, 2195115, 3658525, 4390230, 7317050, 10975575, 21951150]

約数ペア:

[(1, 21951150), (2, 10975575), (3, 7317050), (5, 4390230), (6, 3658525), (10, 2195115), (13, 1688550), (15, 1463410), (25, 878046), (26, 844275), (30, 731705), (39, 562850), (50, 439023), (65, 337710), (75, 292682), (78, 281425), (130, 168855), (150, 146341), (195, 112570), (325, 67542), (390, 56285), (650, 33771), (975, 22514), (1950, 11257)]