21978132

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 59609088

約数和(自身を除く): 37630956

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 31, 33, 41, 44, 62, 66, 82, 93, 123, 124, 131, 132, 164, 186, 246, 262, 341, 372, 393, 451, 492, 524, 682, 786, 902, 1023, 1271, 1353, 1364, 1441, 1572, 1804, 2046, 2542, 2706, 2882, 3813, 4061, 4092, 4323, 5084, 5371, 5412, 5764, 7626, 8122, 8646, 10742, 12183, 13981, 15252, 16113, 16244, 17292, 21484, 24366, 27962, 32226, 41943, 44671, 48732, 55924, 59081, 64452, 83886, 89342, 118162, 134013, 166501, 167772, 177243, 178684, 236324, 268026, 333002, 354486, 499503, 536052, 666004, 708972, 999006, 1831511, 1998012, 3663022, 5494533, 7326044, 10989066, 21978132]

約数ペア:

[(1, 21978132), (2, 10989066), (3, 7326044), (4, 5494533), (6, 3663022), (11, 1998012), (12, 1831511), (22, 999006), (31, 708972), (33, 666004), (41, 536052), (44, 499503), (62, 354486), (66, 333002), (82, 268026), (93, 236324), (123, 178684), (124, 177243), (131, 167772), (132, 166501), (164, 134013), (186, 118162), (246, 89342), (262, 83886), (341, 64452), (372, 59081), (393, 55924), (451, 48732), (492, 44671), (524, 41943), (682, 32226), (786, 27962), (902, 24366), (1023, 21484), (1271, 17292), (1353, 16244), (1364, 16113), (1441, 15252), (1572, 13981), (1804, 12183), (2046, 10742), (2542, 8646), (2706, 8122), (2882, 7626), (3813, 5764), (4061, 5412), (4092, 5371), (4323, 5084)]