21215532

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 56899584

約数和(自身を除く): 35684052

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 41, 52, 62, 78, 82, 93, 107, 123, 124, 156, 164, 186, 214, 246, 321, 372, 403, 428, 492, 533, 642, 806, 1066, 1209, 1271, 1284, 1391, 1599, 1612, 2132, 2418, 2542, 2782, 3198, 3317, 3813, 4173, 4387, 4836, 5084, 5564, 6396, 6634, 7626, 8346, 8774, 9951, 13161, 13268, 15252, 16523, 16692, 17548, 19902, 26322, 33046, 39804, 43121, 49569, 52644, 57031, 66092, 86242, 99138, 114062, 129363, 135997, 171093, 172484, 198276, 228124, 258726, 271994, 342186, 407991, 517452, 543988, 684372, 815982, 1631964, 1767961, 3535922, 5303883, 7071844, 10607766, 21215532]

約数ペア:

[(1, 21215532), (2, 10607766), (3, 7071844), (4, 5303883), (6, 3535922), (12, 1767961), (13, 1631964), (26, 815982), (31, 684372), (39, 543988), (41, 517452), (52, 407991), (62, 342186), (78, 271994), (82, 258726), (93, 228124), (107, 198276), (123, 172484), (124, 171093), (156, 135997), (164, 129363), (186, 114062), (214, 99138), (246, 86242), (321, 66092), (372, 57031), (403, 52644), (428, 49569), (492, 43121), (533, 39804), (642, 33046), (806, 26322), (1066, 19902), (1209, 17548), (1271, 16692), (1284, 16523), (1391, 15252), (1599, 13268), (1612, 13161), (2132, 9951), (2418, 8774), (2542, 8346), (2782, 7626), (3198, 6634), (3317, 6396), (3813, 5564), (4173, 5084), (4387, 4836)]