21988242

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:603

約数の個数: 48

約数和(自身を含む): 50850072

約数和(自身を除く): 28861830

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 181, 306, 362, 397, 543, 794, 1086, 1191, 1629, 2382, 3077, 3258, 3573, 6154, 6749, 7146, 9231, 13498, 18462, 20247, 27693, 40494, 55386, 60741, 71857, 121482, 143714, 215571, 431142, 646713, 1221569, 1293426, 2443138, 3664707, 7329414, 10994121, 21988242]

約数ペア:

[(1, 21988242), (2, 10994121), (3, 7329414), (6, 3664707), (9, 2443138), (17, 1293426), (18, 1221569), (34, 646713), (51, 431142), (102, 215571), (153, 143714), (181, 121482), (306, 71857), (362, 60741), (397, 55386), (543, 40494), (794, 27693), (1086, 20247), (1191, 18462), (1629, 13498), (2382, 9231), (3077, 7146), (3258, 6749), (3573, 6154)]