21994414

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 36900864

約数和(自身を除く): 14906450

約数列:

[1, 2, 13, 26, 43, 86, 103, 191, 206, 382, 559, 1118, 1339, 2483, 2678, 4429, 4966, 8213, 8858, 16426, 19673, 39346, 57577, 106769, 115154, 213538, 255749, 511498, 845939, 1691878, 10997207, 21994414]

約数ペア:

[(1, 21994414), (2, 10997207), (13, 1691878), (26, 845939), (43, 511498), (86, 255749), (103, 213538), (191, 115154), (206, 106769), (382, 57577), (559, 39346), (1118, 19673), (1339, 16426), (2483, 8858), (2678, 8213), (4429, 4966)]