21899325

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 43256160

約数和(自身を除く): 21356835

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 59, 75, 101, 105, 147, 175, 177, 245, 295, 303, 413, 505, 525, 707, 735, 885, 1225, 1239, 1475, 1515, 2065, 2121, 2525, 2891, 3535, 3675, 4425, 4949, 5959, 6195, 7575, 8673, 10325, 10605, 14455, 14847, 17675, 17877, 24745, 29795, 30975, 41713, 43365, 53025, 72275, 74235, 89385, 123725, 125139, 148975, 208565, 216825, 291991, 371175, 446925, 625695, 875973, 1042825, 1459955, 3128475, 4379865, 7299775, 21899325]

約数ペア:

[(1, 21899325), (3, 7299775), (5, 4379865), (7, 3128475), (15, 1459955), (21, 1042825), (25, 875973), (35, 625695), (49, 446925), (59, 371175), (75, 291991), (101, 216825), (105, 208565), (147, 148975), (175, 125139), (177, 123725), (245, 89385), (295, 74235), (303, 72275), (413, 53025), (505, 43365), (525, 41713), (707, 30975), (735, 29795), (885, 24745), (1225, 17877), (1239, 17675), (1475, 14847), (1515, 14455), (2065, 10605), (2121, 10325), (2525, 8673), (2891, 7575), (3535, 6195), (3675, 5959), (4425, 4949)]