28931931

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3257}}^1$

素因数の和:3320

約数の個数: 32

約数和(自身を含む): 50042880

約数和(自身を除く): 21110949

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 141, 189, 329, 423, 987, 1269, 2961, 3257, 8883, 9771, 22799, 29313, 68397, 87939, 153079, 205191, 459237, 615573, 1071553, 1377711, 3214659, 4133133, 9643977, 28931931]

約数ペア:

[(1, 28931931), (3, 9643977), (7, 4133133), (9, 3214659), (21, 1377711), (27, 1071553), (47, 615573), (63, 459237), (141, 205191), (189, 153079), (329, 87939), (423, 68397), (987, 29313), (1269, 22799), (2961, 9771), (3257, 8883)]