21490452

素因数分解:

$2^2\times 3^2\times {\mathrm{241}}^1\times {\mathrm{2477}}^1$

素因数の和:2728

約数の個数: 36

約数和(自身を含む): 54570516

約数和(自身を除く): 33080064

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 241, 482, 723, 964, 1446, 2169, 2477, 2892, 4338, 4954, 7431, 8676, 9908, 14862, 22293, 29724, 44586, 89172, 596957, 1193914, 1790871, 2387828, 3581742, 5372613, 7163484, 10745226, 21490452]

約数ペア:

[(1, 21490452), (2, 10745226), (3, 7163484), (4, 5372613), (6, 3581742), (9, 2387828), (12, 1790871), (18, 1193914), (36, 596957), (241, 89172), (482, 44586), (723, 29724), (964, 22293), (1446, 14862), (2169, 9908), (2477, 8676), (2892, 7431), (4338, 4954)]