21212295

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{601}}^1$

素因数の和:803

約数の個数: 32

約数和(自身を含む): 36813504

約数和(自身を除く): 15601209

約数列:

[1, 3, 5, 13, 15, 39, 65, 181, 195, 543, 601, 905, 1803, 2353, 2715, 3005, 7059, 7813, 9015, 11765, 23439, 35295, 39065, 108781, 117195, 326343, 543905, 1414153, 1631715, 4242459, 7070765, 21212295]

約数ペア:

[(1, 21212295), (3, 7070765), (5, 4242459), (13, 1631715), (15, 1414153), (39, 543905), (65, 326343), (181, 117195), (195, 108781), (543, 39065), (601, 35295), (905, 23439), (1803, 11765), (2353, 9015), (2715, 7813), (3005, 7059)]