221569812

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{619}}^1$

素因数の和:853

約数の個数: 72

約数和(自身を含む): 573678560

約数和(自身を除く): 352108748

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 163, 183, 244, 326, 366, 489, 549, 619, 652, 732, 978, 1098, 1238, 1467, 1857, 1956, 2196, 2476, 2934, 3714, 5571, 5868, 7428, 9943, 11142, 19886, 22284, 29829, 37759, 39772, 59658, 75518, 89487, 100897, 113277, 119316, 151036, 178974, 201794, 226554, 302691, 339831, 357948, 403588, 453108, 605382, 679662, 908073, 1210764, 1359324, 1816146, 3632292, 6154717, 12309434, 18464151, 24618868, 36928302, 55392453, 73856604, 110784906, 221569812]

約数ペア:

[(1, 221569812), (2, 110784906), (3, 73856604), (4, 55392453), (6, 36928302), (9, 24618868), (12, 18464151), (18, 12309434), (36, 6154717), (61, 3632292), (122, 1816146), (163, 1359324), (183, 1210764), (244, 908073), (326, 679662), (366, 605382), (489, 453108), (549, 403588), (619, 357948), (652, 339831), (732, 302691), (978, 226554), (1098, 201794), (1238, 178974), (1467, 151036), (1857, 119316), (1956, 113277), (2196, 100897), (2476, 89487), (2934, 75518), (3714, 59658), (5571, 39772), (5868, 37759), (7428, 29829), (9943, 22284), (11142, 19886)]