20911932

素因数分解:

$2^2\times 3^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:157

約数の個数: 120

約数和(自身を含む): 59628800

約数和(自身を除く): 38716868

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 43, 54, 57, 76, 79, 81, 86, 108, 114, 129, 158, 162, 171, 172, 228, 237, 258, 316, 324, 342, 387, 474, 513, 516, 684, 711, 774, 817, 948, 1026, 1161, 1422, 1501, 1539, 1548, 1634, 2052, 2133, 2322, 2451, 2844, 3002, 3078, 3268, 3397, 3483, 4266, 4503, 4644, 4902, 6004, 6156, 6399, 6794, 6966, 7353, 8532, 9006, 9804, 10191, 12798, 13509, 13588, 13932, 14706, 18012, 20382, 22059, 25596, 27018, 29412, 30573, 40527, 40764, 44118, 54036, 61146, 64543, 66177, 81054, 88236, 91719, 121581, 122292, 129086, 132354, 162108, 183438, 193629, 243162, 258172, 264708, 275157, 366876, 387258, 486324, 550314, 580887, 774516, 1100628, 1161774, 1742661, 2323548, 3485322, 5227983, 6970644, 10455966, 20911932]

約数ペア:

[(1, 20911932), (2, 10455966), (3, 6970644), (4, 5227983), (6, 3485322), (9, 2323548), (12, 1742661), (18, 1161774), (19, 1100628), (27, 774516), (36, 580887), (38, 550314), (43, 486324), (54, 387258), (57, 366876), (76, 275157), (79, 264708), (81, 258172), (86, 243162), (108, 193629), (114, 183438), (129, 162108), (158, 132354), (162, 129086), (171, 122292), (172, 121581), (228, 91719), (237, 88236), (258, 81054), (316, 66177), (324, 64543), (342, 61146), (387, 54036), (474, 44118), (513, 40764), (516, 40527), (684, 30573), (711, 29412), (774, 27018), (817, 25596), (948, 22059), (1026, 20382), (1161, 18012), (1422, 14706), (1501, 13932), (1539, 13588), (1548, 13509), (1634, 12798), (2052, 10191), (2133, 9804), (2322, 9006), (2451, 8532), (2844, 7353), (3002, 6966), (3078, 6794), (3268, 6399), (3397, 6156), (3483, 6004), (4266, 4902), (4503, 4644)]