21563835

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{419}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 14240325

約数列:

[1, 3, 5, 15, 47, 73, 141, 219, 235, 365, 419, 705, 1095, 1257, 2095, 3431, 6285, 10293, 17155, 19693, 30587, 51465, 59079, 91761, 98465, 152935, 295395, 458805, 1437589, 4312767, 7187945, 21563835]

約数ペア:

[(1, 21563835), (3, 7187945), (5, 4312767), (15, 1437589), (47, 458805), (73, 295395), (141, 152935), (219, 98465), (235, 91761), (365, 59079), (419, 51465), (705, 30587), (1095, 19693), (1257, 17155), (2095, 10293), (3431, 6285)]