521001369

素因数分解:

$3^3\times 7^2\times {\mathrm{197}}^1\times {\mathrm{1999}}^1$

素因数の和:2219

約数の個数: 48

約数和(自身を含む): 902880000

約数和(自身を除く): 381878631

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 197, 441, 591, 1323, 1379, 1773, 1999, 4137, 5319, 5997, 9653, 12411, 13993, 17991, 28959, 37233, 41979, 53973, 86877, 97951, 125937, 260631, 293853, 377811, 393803, 881559, 1181409, 2644677, 2756621, 3544227, 8269863, 10632681, 19296347, 24809589, 57889041, 74428767, 173667123, 521001369]

約数ペア:

[(1, 521001369), (3, 173667123), (7, 74428767), (9, 57889041), (21, 24809589), (27, 19296347), (49, 10632681), (63, 8269863), (147, 3544227), (189, 2756621), (197, 2644677), (441, 1181409), (591, 881559), (1323, 393803), (1379, 377811), (1773, 293853), (1999, 260631), (4137, 125937), (5319, 97951), (5997, 86877), (9653, 53973), (12411, 41979), (13993, 37233), (17991, 28959)]