221249475

素因数分解:

$3^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{6427}}^1$

素因数の和:6466

約数の個数: 60

約数和(自身を含む): 434005704

約数和(自身を除く): 212756229

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 153, 225, 255, 405, 425, 459, 675, 765, 1275, 1377, 2025, 2295, 3825, 6427, 6885, 11475, 19281, 32135, 34425, 57843, 96405, 109259, 160675, 173529, 289215, 327777, 482025, 520587, 546295, 867645, 983331, 1446075, 1638885, 2602935, 2731475, 2949993, 4338225, 4916655, 8194425, 8849979, 13014675, 14749965, 24583275, 44249895, 73749825, 221249475]

約数ペア:

[(1, 221249475), (3, 73749825), (5, 44249895), (9, 24583275), (15, 14749965), (17, 13014675), (25, 8849979), (27, 8194425), (45, 4916655), (51, 4338225), (75, 2949993), (81, 2731475), (85, 2602935), (135, 1638885), (153, 1446075), (225, 983331), (255, 867645), (405, 546295), (425, 520587), (459, 482025), (675, 327777), (765, 289215), (1275, 173529), (1377, 160675), (2025, 109259), (2295, 96405), (3825, 57843), (6427, 34425), (6885, 32135), (11475, 19281)]