81807516

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{108211}}^1$

素因数の和:108231

約数の個数: 48

約数和(自身を含む): 242394880

約数和(自身を除く): 160587364

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 108211, 216422, 324633, 432844, 649266, 757477, 973899, 1298532, 1514954, 1947798, 2272431, 2921697, 3029908, 3895596, 4544862, 5843394, 6817293, 9089724, 11686788, 13634586, 20451879, 27269172, 40903758, 81807516]

約数ペア:

[(1, 81807516), (2, 40903758), (3, 27269172), (4, 20451879), (6, 13634586), (7, 11686788), (9, 9089724), (12, 6817293), (14, 5843394), (18, 4544862), (21, 3895596), (27, 3029908), (28, 2921697), (36, 2272431), (42, 1947798), (54, 1514954), (63, 1298532), (84, 973899), (108, 757477), (126, 649266), (189, 432844), (252, 324633), (378, 216422), (756, 108211)]