21438510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16619}}^1$

素因数の和:16672

約数の個数: 32

約数和(自身を含む): 52652160

約数和(自身を除く): 31213650

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16619, 33238, 49857, 83095, 99714, 166190, 249285, 498570, 714617, 1429234, 2143851, 3573085, 4287702, 7146170, 10719255, 21438510]

約数ペア:

[(1, 21438510), (2, 10719255), (3, 7146170), (5, 4287702), (6, 3573085), (10, 2143851), (15, 1429234), (30, 714617), (43, 498570), (86, 249285), (129, 166190), (215, 99714), (258, 83095), (430, 49857), (645, 33238), (1290, 16619)]