21298021215

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{19609}}^1$

素因数の和:19776

約数の個数: 64

約数和(自身を含む): 37199385600

約数和(自身を除く): 15901364385

約数列:

[1, 3, 5, 15, 19, 37, 57, 95, 103, 111, 185, 285, 309, 515, 555, 703, 1545, 1957, 2109, 3515, 3811, 5871, 9785, 10545, 11433, 19055, 19609, 29355, 57165, 58827, 72409, 98045, 217227, 294135, 362045, 372571, 725533, 1086135, 1117713, 1862855, 2019727, 2176599, 3627665, 5588565, 6059181, 10098635, 10882995, 13785127, 30295905, 38374813, 41355381, 68925635, 74729899, 115124439, 191874065, 206776905, 224189697, 373649495, 575622195, 1120948485, 1419868081, 4259604243, 7099340405, 21298021215]

約数ペア:

[(1, 21298021215), (3, 7099340405), (5, 4259604243), (15, 1419868081), (19, 1120948485), (37, 575622195), (57, 373649495), (95, 224189697), (103, 206776905), (111, 191874065), (185, 115124439), (285, 74729899), (309, 68925635), (515, 41355381), (555, 38374813), (703, 30295905), (1545, 13785127), (1957, 10882995), (2109, 10098635), (3515, 6059181), (3811, 5588565), (5871, 3627665), (9785, 2176599), (10545, 2019727), (11433, 1862855), (19055, 1117713), (19609, 1086135), (29355, 725533), (57165, 372571), (58827, 362045), (72409, 294135), (98045, 217227)]