19932465

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{577}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 37953792

約数和(自身を除く): 18021327

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 49, 105, 141, 147, 235, 245, 329, 577, 705, 735, 987, 1645, 1731, 2303, 2885, 4039, 4935, 6909, 8655, 11515, 12117, 20195, 27119, 28273, 34545, 60585, 81357, 84819, 135595, 141365, 189833, 406785, 424095, 569499, 949165, 1328831, 2847495, 3986493, 6644155, 19932465]

約数ペア:

[(1, 19932465), (3, 6644155), (5, 3986493), (7, 2847495), (15, 1328831), (21, 949165), (35, 569499), (47, 424095), (49, 406785), (105, 189833), (141, 141365), (147, 135595), (235, 84819), (245, 81357), (329, 60585), (577, 34545), (705, 28273), (735, 27119), (987, 20195), (1645, 12117), (1731, 11515), (2303, 8655), (2885, 6909), (4039, 4935)]