19883475

素因数分解:

$3^6\times 5^2\times {\mathrm{1091}}^1$

素因数の和:1119

約数の個数: 42

約数和(自身を含む): 37000236

約数和(自身を除く): 17116761

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 729, 1091, 1215, 2025, 3273, 3645, 5455, 6075, 9819, 16365, 18225, 27275, 29457, 49095, 81825, 88371, 147285, 245475, 265113, 441855, 736425, 795339, 1325565, 2209275, 3976695, 6627825, 19883475]

約数ペア:

[(1, 19883475), (3, 6627825), (5, 3976695), (9, 2209275), (15, 1325565), (25, 795339), (27, 736425), (45, 441855), (75, 265113), (81, 245475), (135, 147285), (225, 88371), (243, 81825), (405, 49095), (675, 29457), (729, 27275), (1091, 18225), (1215, 16365), (2025, 9819), (3273, 6075), (3645, 5455)]