20643504

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:223

約数の個数: 120

約数和(自身を含む): 63442368

約数和(自身を除く): 42798864

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 67, 84, 98, 112, 131, 134, 147, 168, 196, 201, 262, 268, 294, 336, 392, 393, 402, 469, 524, 536, 588, 784, 786, 804, 917, 938, 1048, 1072, 1176, 1407, 1572, 1608, 1834, 1876, 2096, 2352, 2751, 2814, 3144, 3216, 3283, 3668, 3752, 5502, 5628, 6288, 6419, 6566, 7336, 7504, 8777, 9849, 11004, 11256, 12838, 13132, 14672, 17554, 19257, 19698, 22008, 22512, 25676, 26264, 26331, 35108, 38514, 39396, 44016, 51352, 52528, 52662, 61439, 70216, 77028, 78792, 102704, 105324, 122878, 140432, 154056, 157584, 184317, 210648, 245756, 308112, 368634, 421296, 430073, 491512, 737268, 860146, 983024, 1290219, 1474536, 1720292, 2580438, 2949072, 3440584, 5160876, 6881168, 10321752, 20643504]

約数ペア:

[(1, 20643504), (2, 10321752), (3, 6881168), (4, 5160876), (6, 3440584), (7, 2949072), (8, 2580438), (12, 1720292), (14, 1474536), (16, 1290219), (21, 983024), (24, 860146), (28, 737268), (42, 491512), (48, 430073), (49, 421296), (56, 368634), (67, 308112), (84, 245756), (98, 210648), (112, 184317), (131, 157584), (134, 154056), (147, 140432), (168, 122878), (196, 105324), (201, 102704), (262, 78792), (268, 77028), (294, 70216), (336, 61439), (392, 52662), (393, 52528), (402, 51352), (469, 44016), (524, 39396), (536, 38514), (588, 35108), (784, 26331), (786, 26264), (804, 25676), (917, 22512), (938, 22008), (1048, 19698), (1072, 19257), (1176, 17554), (1407, 14672), (1572, 13132), (1608, 12838), (1834, 11256), (1876, 11004), (2096, 9849), (2352, 8777), (2751, 7504), (2814, 7336), (3144, 6566), (3216, 6419), (3283, 6288), (3668, 5628), (3752, 5502)]