21718136

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 24937864

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 59, 88, 89, 94, 118, 178, 188, 236, 356, 376, 472, 517, 649, 712, 979, 1034, 1298, 1958, 2068, 2596, 2773, 3916, 4136, 4183, 5192, 5251, 5546, 7832, 8366, 10502, 11092, 16732, 21004, 22184, 30503, 33464, 42008, 46013, 57761, 61006, 92026, 115522, 122012, 184052, 231044, 244024, 246797, 368104, 462088, 493594, 987188, 1974376, 2714767, 5429534, 10859068, 21718136]

約数ペア:

[(1, 21718136), (2, 10859068), (4, 5429534), (8, 2714767), (11, 1974376), (22, 987188), (44, 493594), (47, 462088), (59, 368104), (88, 246797), (89, 244024), (94, 231044), (118, 184052), (178, 122012), (188, 115522), (236, 92026), (356, 61006), (376, 57761), (472, 46013), (517, 42008), (649, 33464), (712, 30503), (979, 22184), (1034, 21004), (1298, 16732), (1958, 11092), (2068, 10502), (2596, 8366), (2773, 7832), (3916, 5546), (4136, 5251), (4183, 5192)]