19997242444

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{557}}^1\times {\mathrm{3323}}^1$

素因数の和:3994

約数の個数: 48

約数和(自身を含む): 36509725728

約数和(自身を除く): 16512483284

約数列:

[1, 2, 4, 37, 73, 74, 146, 148, 292, 557, 1114, 2228, 2701, 3323, 5402, 6646, 10804, 13292, 20609, 40661, 41218, 81322, 82436, 122951, 162644, 242579, 245902, 485158, 491804, 970316, 1504457, 1850911, 3008914, 3701822, 6017828, 7403644, 8975423, 17950846, 35901692, 68483707, 135116503, 136967414, 270233006, 273934828, 540466012, 4999310611, 9998621222, 19997242444]

約数ペア:

[(1, 19997242444), (2, 9998621222), (4, 4999310611), (37, 540466012), (73, 273934828), (74, 270233006), (146, 136967414), (148, 135116503), (292, 68483707), (557, 35901692), (1114, 17950846), (2228, 8975423), (2701, 7403644), (3323, 6017828), (5402, 3701822), (6646, 3008914), (10804, 1850911), (13292, 1504457), (20609, 970316), (40661, 491804), (41218, 485158), (81322, 245902), (82436, 242579), (122951, 162644)]