21771594

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:472

約数の個数: 72

約数和(自身を含む): 54212652

約数和(自身を除く): 32441058

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 169, 221, 234, 306, 338, 421, 442, 507, 663, 842, 1014, 1263, 1326, 1521, 1989, 2526, 2873, 3042, 3789, 3978, 5473, 5746, 7157, 7578, 8619, 10946, 14314, 16419, 17238, 21471, 25857, 32838, 42942, 49257, 51714, 64413, 71149, 93041, 98514, 128826, 142298, 186082, 213447, 279123, 426894, 558246, 640341, 837369, 1209533, 1280682, 1674738, 2419066, 3628599, 7257198, 10885797, 21771594]

約数ペア:

[(1, 21771594), (2, 10885797), (3, 7257198), (6, 3628599), (9, 2419066), (13, 1674738), (17, 1280682), (18, 1209533), (26, 837369), (34, 640341), (39, 558246), (51, 426894), (78, 279123), (102, 213447), (117, 186082), (153, 142298), (169, 128826), (221, 98514), (234, 93041), (306, 71149), (338, 64413), (421, 51714), (442, 49257), (507, 42942), (663, 32838), (842, 25857), (1014, 21471), (1263, 17238), (1326, 16419), (1521, 14314), (1989, 10946), (2526, 8619), (2873, 7578), (3042, 7157), (3789, 5746), (3978, 5473)]