21056554540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3539}}^1\times {\mathrm{42499}}^1$

素因数の和:46054

約数の個数: 48

約数和(自身を含む): 50551200000

約数和(自身を除く): 29494645460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3539, 7078, 14156, 17695, 24773, 35390, 42499, 49546, 70780, 84998, 99092, 123865, 169996, 212495, 247730, 297493, 424990, 495460, 594986, 849980, 1189972, 1487465, 2974930, 5949860, 150403961, 300807922, 601615844, 752019805, 1052827727, 1504039610, 2105655454, 3008079220, 4211310908, 5264138635, 10528277270, 21056554540]

約数ペア:

[(1, 21056554540), (2, 10528277270), (4, 5264138635), (5, 4211310908), (7, 3008079220), (10, 2105655454), (14, 1504039610), (20, 1052827727), (28, 752019805), (35, 601615844), (70, 300807922), (140, 150403961), (3539, 5949860), (7078, 2974930), (14156, 1487465), (17695, 1189972), (24773, 849980), (35390, 594986), (42499, 495460), (49546, 424990), (70780, 297493), (84998, 247730), (99092, 212495), (123865, 169996)]