21193704

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:260

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 47235096

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 107, 108, 126, 131, 168, 189, 214, 216, 252, 262, 321, 378, 393, 428, 504, 524, 642, 749, 756, 786, 856, 917, 963, 1048, 1179, 1284, 1498, 1512, 1572, 1834, 1926, 2247, 2358, 2568, 2751, 2889, 2996, 3144, 3537, 3668, 3852, 4494, 4716, 5502, 5778, 5992, 6741, 7074, 7336, 7704, 8253, 8988, 9432, 11004, 11556, 13482, 14017, 14148, 16506, 17976, 20223, 22008, 23112, 24759, 26964, 28034, 28296, 33012, 40446, 42051, 49518, 53928, 56068, 66024, 80892, 84102, 98119, 99036, 112136, 126153, 161784, 168204, 196238, 198072, 252306, 294357, 336408, 378459, 392476, 504612, 588714, 756918, 784952, 883071, 1009224, 1177428, 1513836, 1766142, 2354856, 2649213, 3027672, 3532284, 5298426, 7064568, 10596852, 21193704]

約数ペア:

[(1, 21193704), (2, 10596852), (3, 7064568), (4, 5298426), (6, 3532284), (7, 3027672), (8, 2649213), (9, 2354856), (12, 1766142), (14, 1513836), (18, 1177428), (21, 1009224), (24, 883071), (27, 784952), (28, 756918), (36, 588714), (42, 504612), (54, 392476), (56, 378459), (63, 336408), (72, 294357), (84, 252306), (107, 198072), (108, 196238), (126, 168204), (131, 161784), (168, 126153), (189, 112136), (214, 99036), (216, 98119), (252, 84102), (262, 80892), (321, 66024), (378, 56068), (393, 53928), (428, 49518), (504, 42051), (524, 40446), (642, 33012), (749, 28296), (756, 28034), (786, 26964), (856, 24759), (917, 23112), (963, 22008), (1048, 20223), (1179, 17976), (1284, 16506), (1498, 14148), (1512, 14017), (1572, 13482), (1834, 11556), (1926, 11004), (2247, 9432), (2358, 8988), (2568, 8253), (2751, 7704), (2889, 7336), (2996, 7074), (3144, 6741), (3537, 5992), (3668, 5778), (3852, 5502), (4494, 4716)]