21576995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{491}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 30606336

約数和(自身を除く): 9029341

約数列:

[1, 5, 11, 17, 47, 55, 85, 187, 235, 491, 517, 799, 935, 2455, 2585, 3995, 5401, 8347, 8789, 23077, 27005, 41735, 43945, 91817, 115385, 253847, 392309, 459085, 1269235, 1961545, 4315399, 21576995]

約数ペア:

[(1, 21576995), (5, 4315399), (11, 1961545), (17, 1269235), (47, 459085), (55, 392309), (85, 253847), (187, 115385), (235, 91817), (491, 43945), (517, 41735), (799, 27005), (935, 23077), (2455, 8789), (2585, 8347), (3995, 5401)]