291452013

素因数分解:

$3^6\times {\mathrm{401}}^1\times {\mathrm{997}}^1$

素因数の和:1416

約数の個数: 28

約数和(自身を含む): 438507228

約数和(自身を除く): 147055215

約数列:

[1, 3, 9, 27, 81, 243, 401, 729, 997, 1203, 2991, 3609, 8973, 10827, 26919, 32481, 80757, 97443, 242271, 292329, 399797, 726813, 1199391, 3598173, 10794519, 32383557, 97150671, 291452013]

約数ペア:

[(1, 291452013), (3, 97150671), (9, 32383557), (27, 10794519), (81, 3598173), (243, 1199391), (401, 726813), (729, 399797), (997, 292329), (1203, 242271), (2991, 97443), (3609, 80757), (8973, 32481), (10827, 26919)]