21849156675

素因数分解:

$3^5\times 5^2\times {\mathrm{401}}^1\times {\mathrm{8969}}^1$

素因数の和:9395

約数の個数: 72

約数和(自身を含む): 40689426960

約数和(自身を除く): 18840270285

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 401, 405, 675, 1203, 1215, 2005, 2025, 3609, 6015, 6075, 8969, 10025, 10827, 18045, 26907, 30075, 32481, 44845, 54135, 80721, 90225, 97443, 134535, 162405, 224225, 242163, 270675, 403605, 487215, 672675, 726489, 812025, 1210815, 2018025, 2179467, 2436075, 3596569, 3632445, 6054075, 10789707, 10897335, 17982845, 18162225, 32369121, 53948535, 54486675, 89914225, 97107363, 161845605, 269742675, 291322089, 485536815, 809228025, 873966267, 1456610445, 2427684075, 4369831335, 7283052225, 21849156675]

約数ペア:

[(1, 21849156675), (3, 7283052225), (5, 4369831335), (9, 2427684075), (15, 1456610445), (25, 873966267), (27, 809228025), (45, 485536815), (75, 291322089), (81, 269742675), (135, 161845605), (225, 97107363), (243, 89914225), (401, 54486675), (405, 53948535), (675, 32369121), (1203, 18162225), (1215, 17982845), (2005, 10897335), (2025, 10789707), (3609, 6054075), (6015, 3632445), (6075, 3596569), (8969, 2436075), (10025, 2179467), (10827, 2018025), (18045, 1210815), (26907, 812025), (30075, 726489), (32481, 672675), (44845, 487215), (54135, 403605), (80721, 270675), (90225, 242163), (97443, 224225), (134535, 162405)]