21032025

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:183

約数の個数: 72

約数和(自身を含む): 41559840

約数和(自身を除く): 20527815

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 59, 75, 97, 105, 147, 175, 177, 245, 291, 295, 413, 485, 525, 679, 735, 885, 1225, 1239, 1455, 1475, 2037, 2065, 2425, 2891, 3395, 3675, 4425, 4753, 5723, 6195, 7275, 8673, 10185, 10325, 14259, 14455, 16975, 17169, 23765, 28615, 30975, 40061, 43365, 50925, 71295, 72275, 85845, 118825, 120183, 143075, 200305, 216825, 280427, 356475, 429225, 600915, 841281, 1001525, 1402135, 3004575, 4206405, 7010675, 21032025]

約数ペア:

[(1, 21032025), (3, 7010675), (5, 4206405), (7, 3004575), (15, 1402135), (21, 1001525), (25, 841281), (35, 600915), (49, 429225), (59, 356475), (75, 280427), (97, 216825), (105, 200305), (147, 143075), (175, 120183), (177, 118825), (245, 85845), (291, 72275), (295, 71295), (413, 50925), (485, 43365), (525, 40061), (679, 30975), (735, 28615), (885, 23765), (1225, 17169), (1239, 16975), (1455, 14455), (1475, 14259), (2037, 10325), (2065, 10185), (2425, 8673), (2891, 7275), (3395, 6195), (3675, 5723), (4425, 4753)]