21019492444

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{37747}}^1$

素因数の和:38218

約数の個数: 48

約数和(自身を含む): 41093982720

約数和(自身を除く): 20074490276

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 431, 646, 862, 1292, 1724, 7327, 8189, 14654, 16378, 29308, 32756, 37747, 75494, 139213, 150988, 278426, 556852, 641699, 717193, 1283398, 1434386, 2566796, 2868772, 12192281, 16268957, 24384562, 32537914, 48769124, 65075828, 276572269, 309110183, 553144538, 618220366, 1106289076, 1236440732, 5254873111, 10509746222, 21019492444]

約数ペア:

[(1, 21019492444), (2, 10509746222), (4, 5254873111), (17, 1236440732), (19, 1106289076), (34, 618220366), (38, 553144538), (68, 309110183), (76, 276572269), (323, 65075828), (431, 48769124), (646, 32537914), (862, 24384562), (1292, 16268957), (1724, 12192281), (7327, 2868772), (8189, 2566796), (14654, 1434386), (16378, 1283398), (29308, 717193), (32756, 641699), (37747, 556852), (75494, 278426), (139213, 150988)]