21611835

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 47324160

約数和(自身を除く): 25712325

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 23, 35, 45, 57, 63, 69, 95, 105, 115, 133, 157, 161, 171, 207, 285, 315, 345, 399, 437, 471, 483, 665, 785, 805, 855, 1035, 1099, 1197, 1311, 1413, 1449, 1995, 2185, 2355, 2415, 2983, 3059, 3297, 3611, 3933, 5495, 5985, 6555, 7065, 7245, 8949, 9177, 9891, 10833, 14915, 15295, 16485, 18055, 19665, 20881, 25277, 26847, 27531, 32499, 44745, 45885, 49455, 54165, 62643, 68609, 75831, 104405, 126385, 134235, 137655, 162495, 187929, 205827, 227493, 313215, 343045, 379155, 480263, 617481, 939645, 1029135, 1137465, 1440789, 2401315, 3087405, 4322367, 7203945, 21611835]

約数ペア:

[(1, 21611835), (3, 7203945), (5, 4322367), (7, 3087405), (9, 2401315), (15, 1440789), (19, 1137465), (21, 1029135), (23, 939645), (35, 617481), (45, 480263), (57, 379155), (63, 343045), (69, 313215), (95, 227493), (105, 205827), (115, 187929), (133, 162495), (157, 137655), (161, 134235), (171, 126385), (207, 104405), (285, 75831), (315, 68609), (345, 62643), (399, 54165), (437, 49455), (471, 45885), (483, 44745), (665, 32499), (785, 27531), (805, 26847), (855, 25277), (1035, 20881), (1099, 19665), (1197, 18055), (1311, 16485), (1413, 15295), (1449, 14915), (1995, 10833), (2185, 9891), (2355, 9177), (2415, 8949), (2983, 7245), (3059, 7065), (3297, 6555), (3611, 5985), (3933, 5495)]