19853535

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 37231488

約数和(自身を除く): 17377953

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 53, 65, 85, 113, 159, 195, 221, 255, 265, 339, 565, 663, 689, 795, 901, 1105, 1469, 1695, 1921, 2067, 2703, 3315, 3445, 4407, 4505, 5763, 5989, 7345, 9605, 10335, 11713, 13515, 17967, 22035, 24973, 28815, 29945, 35139, 58565, 74919, 77857, 89835, 101813, 124865, 175695, 233571, 305439, 374595, 389285, 509065, 1167855, 1323569, 1527195, 3970707, 6617845, 19853535]

約数ペア:

[(1, 19853535), (3, 6617845), (5, 3970707), (13, 1527195), (15, 1323569), (17, 1167855), (39, 509065), (51, 389285), (53, 374595), (65, 305439), (85, 233571), (113, 175695), (159, 124865), (195, 101813), (221, 89835), (255, 77857), (265, 74919), (339, 58565), (565, 35139), (663, 29945), (689, 28815), (795, 24973), (901, 22035), (1105, 17967), (1469, 13515), (1695, 11713), (1921, 10335), (2067, 9605), (2703, 7345), (3315, 5989), (3445, 5763), (4407, 4505)]