28972251

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{431}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 52835328

約数和(自身を除く): 23863077

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 97, 99, 231, 291, 431, 679, 693, 873, 1067, 1293, 2037, 3017, 3201, 3879, 4741, 6111, 7469, 9051, 9603, 14223, 22407, 27153, 33187, 41807, 42669, 67221, 99561, 125421, 292649, 298683, 376263, 459877, 877947, 1379631, 2633841, 3219139, 4138893, 9657417, 28972251]

約数ペア:

[(1, 28972251), (3, 9657417), (7, 4138893), (9, 3219139), (11, 2633841), (21, 1379631), (33, 877947), (63, 459877), (77, 376263), (97, 298683), (99, 292649), (231, 125421), (291, 99561), (431, 67221), (679, 42669), (693, 41807), (873, 33187), (1067, 27153), (1293, 22407), (2037, 14223), (3017, 9603), (3201, 9051), (3879, 7469), (4741, 6111)]