19635187

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 25147584

約数和(自身を除く): 5512397

約数列:

[1, 11, 13, 17, 41, 143, 187, 197, 221, 451, 533, 697, 2167, 2431, 2561, 3349, 5863, 7667, 8077, 9061, 28171, 36839, 43537, 88847, 99671, 105001, 137309, 478907, 1155011, 1510399, 1785017, 19635187]

約数ペア:

[(1, 19635187), (11, 1785017), (13, 1510399), (17, 1155011), (41, 478907), (143, 137309), (187, 105001), (197, 99671), (221, 88847), (451, 43537), (533, 36839), (697, 28171), (2167, 9061), (2431, 8077), (2561, 7667), (3349, 5863)]