21799916

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{359}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 21745684

約数列:

[1, 2, 4, 17, 19, 34, 38, 47, 68, 76, 94, 188, 323, 359, 646, 718, 799, 893, 1292, 1436, 1598, 1786, 3196, 3572, 6103, 6821, 12206, 13642, 15181, 16873, 24412, 27284, 30362, 33746, 60724, 67492, 115957, 231914, 286841, 320587, 463828, 573682, 641174, 1147364, 1282348, 5449979, 10899958, 21799916]

約数ペア:

[(1, 21799916), (2, 10899958), (4, 5449979), (17, 1282348), (19, 1147364), (34, 641174), (38, 573682), (47, 463828), (68, 320587), (76, 286841), (94, 231914), (188, 115957), (323, 67492), (359, 60724), (646, 33746), (718, 30362), (799, 27284), (893, 24412), (1292, 16873), (1436, 15181), (1598, 13642), (1786, 12206), (3196, 6821), (3572, 6103)]