28700973

素因数分解:

$3^5\times 7^1\times {\mathrm{47}}^1\times {\mathrm{359}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 50319360

約数和(自身を除く): 21618387

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 141, 189, 243, 329, 359, 423, 567, 987, 1077, 1269, 1701, 2513, 2961, 3231, 3807, 7539, 8883, 9693, 11421, 16873, 22617, 26649, 29079, 50619, 67851, 79947, 87237, 118111, 151857, 203553, 354333, 455571, 610659, 1062999, 1366713, 3188997, 4100139, 9566991, 28700973]

約数ペア:

[(1, 28700973), (3, 9566991), (7, 4100139), (9, 3188997), (21, 1366713), (27, 1062999), (47, 610659), (63, 455571), (81, 354333), (141, 203553), (189, 151857), (243, 118111), (329, 87237), (359, 79947), (423, 67851), (567, 50619), (987, 29079), (1077, 26649), (1269, 22617), (1701, 16873), (2513, 11421), (2961, 9693), (3231, 8883), (3807, 7539)]