21746985

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{487}}^1$

素因数の和:737

約数の個数: 32

約数和(自身を含む): 37712640

約数和(自身を除く): 15965655

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 229, 487, 687, 1145, 1461, 2435, 2977, 3435, 6331, 7305, 8931, 14885, 18993, 31655, 44655, 94965, 111523, 334569, 557615, 1449799, 1672845, 4349397, 7248995, 21746985]

約数ペア:

[(1, 21746985), (3, 7248995), (5, 4349397), (13, 1672845), (15, 1449799), (39, 557615), (65, 334569), (195, 111523), (229, 94965), (487, 44655), (687, 31655), (1145, 18993), (1461, 14885), (2435, 8931), (2977, 7305), (3435, 6331)]