21025332

素因数分解:

$2^2\times 3^5\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 55933696

約数和(自身を除く): 34908364

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 97, 108, 162, 194, 223, 243, 291, 324, 388, 446, 486, 582, 669, 873, 892, 972, 1164, 1338, 1746, 2007, 2619, 2676, 3492, 4014, 5238, 6021, 7857, 8028, 10476, 12042, 15714, 18063, 21631, 23571, 24084, 31428, 36126, 43262, 47142, 54189, 64893, 72252, 86524, 94284, 108378, 129786, 194679, 216756, 259572, 389358, 584037, 778716, 1168074, 1752111, 2336148, 3504222, 5256333, 7008444, 10512666, 21025332]

約数ペア:

[(1, 21025332), (2, 10512666), (3, 7008444), (4, 5256333), (6, 3504222), (9, 2336148), (12, 1752111), (18, 1168074), (27, 778716), (36, 584037), (54, 389358), (81, 259572), (97, 216756), (108, 194679), (162, 129786), (194, 108378), (223, 94284), (243, 86524), (291, 72252), (324, 64893), (388, 54189), (446, 47142), (486, 43262), (582, 36126), (669, 31428), (873, 24084), (892, 23571), (972, 21631), (1164, 18063), (1338, 15714), (1746, 12042), (2007, 10476), (2619, 8028), (2676, 7857), (3492, 6021), (4014, 5238)]