213291225

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{367}}^1$

素因数の和:437

約数の個数: 120

約数和(自身を含む): 463803648

約数和(自身を除く): 250512423

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 41, 45, 63, 75, 81, 105, 123, 135, 175, 189, 205, 225, 287, 315, 367, 369, 405, 525, 567, 615, 675, 861, 945, 1025, 1101, 1107, 1435, 1575, 1835, 1845, 2025, 2569, 2583, 2835, 3075, 3303, 3321, 4305, 4725, 5505, 5535, 7175, 7707, 7749, 9175, 9225, 9909, 12845, 12915, 14175, 15047, 16515, 16605, 21525, 23121, 23247, 27525, 27675, 29727, 38535, 38745, 45141, 49545, 64225, 64575, 69363, 75235, 82575, 83025, 105329, 115605, 116235, 135423, 148635, 192675, 193725, 208089, 225705, 247725, 315987, 346815, 376175, 406269, 526645, 578025, 581175, 677115, 743175, 947961, 1040445, 1128525, 1218807, 1579935, 1734075, 2031345, 2633225, 2843883, 3385575, 4739805, 5202225, 6094035, 7899675, 8531649, 10156725, 14219415, 23699025, 30470175, 42658245, 71097075, 213291225]

約数ペア:

[(1, 213291225), (3, 71097075), (5, 42658245), (7, 30470175), (9, 23699025), (15, 14219415), (21, 10156725), (25, 8531649), (27, 7899675), (35, 6094035), (41, 5202225), (45, 4739805), (63, 3385575), (75, 2843883), (81, 2633225), (105, 2031345), (123, 1734075), (135, 1579935), (175, 1218807), (189, 1128525), (205, 1040445), (225, 947961), (287, 743175), (315, 677115), (367, 581175), (369, 578025), (405, 526645), (525, 406269), (567, 376175), (615, 346815), (675, 315987), (861, 247725), (945, 225705), (1025, 208089), (1101, 193725), (1107, 192675), (1435, 148635), (1575, 135423), (1835, 116235), (1845, 115605), (2025, 105329), (2569, 83025), (2583, 82575), (2835, 75235), (3075, 69363), (3303, 64575), (3321, 64225), (4305, 49545), (4725, 45141), (5505, 38745), (5535, 38535), (7175, 29727), (7707, 27675), (7749, 27525), (9175, 23247), (9225, 23121), (9909, 21525), (12845, 16605), (12915, 16515), (14175, 15047)]