21574804940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1406441}}^1$

素因数の和:1406522

約数の個数: 48

約数和(自身を含む): 49619273760

約数和(自身を除く): 28044468820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 236, 260, 295, 590, 767, 1180, 1534, 3068, 3835, 7670, 15340, 1406441, 2812882, 5625764, 7032205, 14064410, 18283733, 28128820, 36567466, 73134932, 82980019, 91418665, 165960038, 182837330, 331920076, 365674660, 414900095, 829800190, 1078740247, 1659600380, 2157480494, 4314960988, 5393701235, 10787402470, 21574804940]

約数ペア:

[(1, 21574804940), (2, 10787402470), (4, 5393701235), (5, 4314960988), (10, 2157480494), (13, 1659600380), (20, 1078740247), (26, 829800190), (52, 414900095), (59, 365674660), (65, 331920076), (118, 182837330), (130, 165960038), (236, 91418665), (260, 82980019), (295, 73134932), (590, 36567466), (767, 28128820), (1180, 18283733), (1534, 14064410), (3068, 7032205), (3835, 5625764), (7670, 2812882), (15340, 1406441)]