21582210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55339}}^1$

素因数の和:55362

約数の個数: 32

約数和(自身を含む): 55782720

約数和(自身を除く): 34200510

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55339, 110678, 166017, 276695, 332034, 553390, 719407, 830085, 1438814, 1660170, 2158221, 3597035, 4316442, 7194070, 10791105, 21582210]

約数ペア:

[(1, 21582210), (2, 10791105), (3, 7194070), (5, 4316442), (6, 3597035), (10, 2158221), (13, 1660170), (15, 1438814), (26, 830085), (30, 719407), (39, 553390), (65, 332034), (78, 276695), (130, 166017), (195, 110678), (390, 55339)]