21490758

素因数分解:

$2^1\times 3^4\times {\mathrm{53}}^1\times {\mathrm{2503}}^1$

素因数の和:2570

約数の個数: 40

約数和(自身を含む): 49083408

約数和(自身を除く): 27592650

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 81, 106, 159, 162, 318, 477, 954, 1431, 2503, 2862, 4293, 5006, 7509, 8586, 15018, 22527, 45054, 67581, 132659, 135162, 202743, 265318, 397977, 405486, 795954, 1193931, 2387862, 3581793, 7163586, 10745379, 21490758]

約数ペア:

[(1, 21490758), (2, 10745379), (3, 7163586), (6, 3581793), (9, 2387862), (18, 1193931), (27, 795954), (53, 405486), (54, 397977), (81, 265318), (106, 202743), (159, 135162), (162, 132659), (318, 67581), (477, 45054), (954, 22527), (1431, 15018), (2503, 8586), (2862, 7509), (4293, 5006)]