21226506

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:204

約数の個数: 96

約数和(自身を含む): 54369792

約数和(自身を除く): 33143286

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 31, 34, 42, 49, 51, 62, 93, 98, 102, 119, 137, 147, 186, 217, 238, 274, 294, 357, 411, 434, 527, 651, 714, 822, 833, 959, 1054, 1302, 1519, 1581, 1666, 1918, 2329, 2499, 2877, 3038, 3162, 3689, 4247, 4557, 4658, 4998, 5754, 6713, 6987, 7378, 8494, 9114, 11067, 12741, 13426, 13974, 16303, 20139, 22134, 25482, 25823, 29729, 32606, 40278, 48909, 51646, 59458, 72199, 77469, 89187, 97818, 114121, 144398, 154938, 178374, 208103, 216597, 228242, 342363, 416206, 433194, 505393, 624309, 684726, 1010786, 1248618, 1516179, 3032358, 3537751, 7075502, 10613253, 21226506]

約数ペア:

[(1, 21226506), (2, 10613253), (3, 7075502), (6, 3537751), (7, 3032358), (14, 1516179), (17, 1248618), (21, 1010786), (31, 684726), (34, 624309), (42, 505393), (49, 433194), (51, 416206), (62, 342363), (93, 228242), (98, 216597), (102, 208103), (119, 178374), (137, 154938), (147, 144398), (186, 114121), (217, 97818), (238, 89187), (274, 77469), (294, 72199), (357, 59458), (411, 51646), (434, 48909), (527, 40278), (651, 32606), (714, 29729), (822, 25823), (833, 25482), (959, 22134), (1054, 20139), (1302, 16303), (1519, 13974), (1581, 13426), (1666, 12741), (1918, 11067), (2329, 9114), (2499, 8494), (2877, 7378), (3038, 6987), (3162, 6713), (3689, 5754), (4247, 4998), (4557, 4658)]