217133055

素因数分解:

$3^4\times 5^1\times {\mathrm{541}}^1\times {\mathrm{991}}^1$

素因数の和:1549

約数の個数: 40

約数和(自身を含む): 390344064

約数和(自身を除く): 173211009

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 541, 991, 1623, 2705, 2973, 4869, 4955, 8115, 8919, 14607, 14865, 24345, 26757, 43821, 44595, 73035, 80271, 133785, 219105, 401355, 536131, 1608393, 2680655, 4825179, 8041965, 14475537, 24125895, 43426611, 72377685, 217133055]

約数ペア:

[(1, 217133055), (3, 72377685), (5, 43426611), (9, 24125895), (15, 14475537), (27, 8041965), (45, 4825179), (81, 2680655), (135, 1608393), (405, 536131), (541, 401355), (991, 219105), (1623, 133785), (2705, 80271), (2973, 73035), (4869, 44595), (4955, 43821), (8115, 26757), (8919, 24345), (14607, 14865)]