211749825

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{367}}^1$

素因数の和:551

約数の個数: 72

約数和(自身を含む): 410961792

約数和(自身を除く): 199211967

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 147, 157, 175, 245, 367, 471, 525, 735, 785, 1099, 1101, 1225, 1835, 2355, 2569, 3297, 3675, 3925, 5495, 5505, 7693, 7707, 9175, 11775, 12845, 16485, 17983, 23079, 27475, 27525, 38465, 38535, 53949, 57619, 64225, 82425, 89915, 115395, 172857, 192325, 192675, 269745, 288095, 403333, 449575, 576975, 864285, 1209999, 1348725, 1440475, 2016665, 2823331, 4321425, 6049995, 8469993, 10083325, 14116655, 30249975, 42349965, 70583275, 211749825]

約数ペア:

[(1, 211749825), (3, 70583275), (5, 42349965), (7, 30249975), (15, 14116655), (21, 10083325), (25, 8469993), (35, 6049995), (49, 4321425), (75, 2823331), (105, 2016665), (147, 1440475), (157, 1348725), (175, 1209999), (245, 864285), (367, 576975), (471, 449575), (525, 403333), (735, 288095), (785, 269745), (1099, 192675), (1101, 192325), (1225, 172857), (1835, 115395), (2355, 89915), (2569, 82425), (3297, 64225), (3675, 57619), (3925, 53949), (5495, 38535), (5505, 38465), (7693, 27525), (7707, 27475), (9175, 23079), (11775, 17983), (12845, 16485)]