21876885

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2843}}^1$

素因数の和:2879

約数の個数: 40

約数和(自身を含む): 41294880

約数和(自身を除く): 19417995

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2565, 2843, 7695, 8529, 14215, 25587, 42645, 54017, 76761, 127935, 162051, 230283, 270085, 383805, 486153, 810255, 1151415, 1458459, 2430765, 4375377, 7292295, 21876885]

約数ペア:

[(1, 21876885), (3, 7292295), (5, 4375377), (9, 2430765), (15, 1458459), (19, 1151415), (27, 810255), (45, 486153), (57, 383805), (81, 270085), (95, 230283), (135, 162051), (171, 127935), (285, 76761), (405, 54017), (513, 42645), (855, 25587), (1539, 14215), (2565, 8529), (2843, 7695)]