20617212

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:499

約数の個数: 96

約数和(自身を含む): 61254144

約数和(自身を除く): 40636932

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 53, 66, 77, 84, 106, 132, 154, 159, 212, 231, 308, 318, 371, 421, 462, 583, 636, 742, 842, 924, 1113, 1166, 1263, 1484, 1684, 1749, 2226, 2332, 2526, 2947, 3498, 4081, 4452, 4631, 5052, 5894, 6996, 8162, 8841, 9262, 11788, 12243, 13893, 16324, 17682, 18524, 22313, 24486, 27786, 32417, 35364, 44626, 48972, 55572, 64834, 66939, 89252, 97251, 129668, 133878, 156191, 194502, 245443, 267756, 312382, 389004, 468573, 490886, 624764, 736329, 937146, 981772, 1472658, 1718101, 1874292, 2945316, 3436202, 5154303, 6872404, 10308606, 20617212]

約数ペア:

[(1, 20617212), (2, 10308606), (3, 6872404), (4, 5154303), (6, 3436202), (7, 2945316), (11, 1874292), (12, 1718101), (14, 1472658), (21, 981772), (22, 937146), (28, 736329), (33, 624764), (42, 490886), (44, 468573), (53, 389004), (66, 312382), (77, 267756), (84, 245443), (106, 194502), (132, 156191), (154, 133878), (159, 129668), (212, 97251), (231, 89252), (308, 66939), (318, 64834), (371, 55572), (421, 48972), (462, 44626), (583, 35364), (636, 32417), (742, 27786), (842, 24486), (924, 22313), (1113, 18524), (1166, 17682), (1263, 16324), (1484, 13893), (1684, 12243), (1749, 11788), (2226, 9262), (2332, 8841), (2526, 8162), (2947, 6996), (3498, 5894), (4081, 5052), (4452, 4631)]