21793450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:967

約数の個数: 48

約数和(自身を含む): 47032704

約数和(自身を除く): 25239254

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 71, 142, 175, 350, 355, 497, 710, 877, 994, 1754, 1775, 2485, 3550, 4385, 4970, 6139, 8770, 12278, 12425, 21925, 24850, 30695, 43850, 61390, 62267, 124534, 153475, 306950, 311335, 435869, 622670, 871738, 1556675, 2179345, 3113350, 4358690, 10896725, 21793450]

約数ペア:

[(1, 21793450), (2, 10896725), (5, 4358690), (7, 3113350), (10, 2179345), (14, 1556675), (25, 871738), (35, 622670), (50, 435869), (70, 311335), (71, 306950), (142, 153475), (175, 124534), (350, 62267), (355, 61390), (497, 43850), (710, 30695), (877, 24850), (994, 21925), (1754, 12425), (1775, 12278), (2485, 8770), (3550, 6139), (4385, 4970)]