21484554

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1$

素因数の和:172

約数の個数: 96

約数和(自身を含む): 56327040

約数和(自身を除く): 34842486

約数列:

[1, 2, 3, 6, 7, 13, 14, 19, 21, 26, 38, 39, 42, 57, 78, 91, 109, 114, 133, 182, 218, 247, 266, 273, 327, 361, 399, 494, 546, 654, 722, 741, 763, 798, 1083, 1417, 1482, 1526, 1729, 2071, 2166, 2289, 2527, 2834, 3458, 4142, 4251, 4578, 4693, 5054, 5187, 6213, 7581, 8502, 9386, 9919, 10374, 12426, 14079, 14497, 15162, 19838, 26923, 28158, 28994, 29757, 32851, 39349, 43491, 53846, 59514, 65702, 78698, 80769, 86982, 98553, 118047, 161538, 188461, 197106, 236094, 275443, 376922, 511537, 550886, 565383, 826329, 1023074, 1130766, 1534611, 1652658, 3069222, 3580759, 7161518, 10742277, 21484554]

約数ペア:

[(1, 21484554), (2, 10742277), (3, 7161518), (6, 3580759), (7, 3069222), (13, 1652658), (14, 1534611), (19, 1130766), (21, 1023074), (26, 826329), (38, 565383), (39, 550886), (42, 511537), (57, 376922), (78, 275443), (91, 236094), (109, 197106), (114, 188461), (133, 161538), (182, 118047), (218, 98553), (247, 86982), (266, 80769), (273, 78698), (327, 65702), (361, 59514), (399, 53846), (494, 43491), (546, 39349), (654, 32851), (722, 29757), (741, 28994), (763, 28158), (798, 26923), (1083, 19838), (1417, 15162), (1482, 14497), (1526, 14079), (1729, 12426), (2071, 10374), (2166, 9919), (2289, 9386), (2527, 8502), (2834, 7581), (3458, 6213), (4142, 5187), (4251, 5054), (4578, 4693)]