17971395

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4007}}^1$

素因数の和:4051

約数の個数: 32

約数和(自身を含む): 32320512

約数和(自身を除く): 14349117

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4007, 4485, 12021, 20035, 52091, 60105, 92161, 156273, 260455, 276483, 460805, 781365, 1198093, 1382415, 3594279, 5990465, 17971395]

約数ペア:

[(1, 17971395), (3, 5990465), (5, 3594279), (13, 1382415), (15, 1198093), (23, 781365), (39, 460805), (65, 276483), (69, 260455), (115, 156273), (195, 92161), (299, 60105), (345, 52091), (897, 20035), (1495, 12021), (4007, 4485)]