21563370

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{911}}^1$

素因数の和:1187

約数の個数: 48

約数和(自身を含む): 56339712

約数和(自身を除く): 34776342

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 263, 526, 789, 911, 1315, 1578, 1822, 2367, 2630, 2733, 3945, 4555, 4734, 5466, 7890, 8199, 9110, 11835, 13665, 16398, 23670, 27330, 40995, 81990, 239593, 479186, 718779, 1197965, 1437558, 2156337, 2395930, 3593895, 4312674, 7187790, 10781685, 21563370]

約数ペア:

[(1, 21563370), (2, 10781685), (3, 7187790), (5, 4312674), (6, 3593895), (9, 2395930), (10, 2156337), (15, 1437558), (18, 1197965), (30, 718779), (45, 479186), (90, 239593), (263, 81990), (526, 40995), (789, 27330), (911, 23670), (1315, 16398), (1578, 13665), (1822, 11835), (2367, 9110), (2630, 8199), (2733, 7890), (3945, 5466), (4555, 4734)]