221251212

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67537}}^1$

素因数の和:67567

約数の個数: 72

約数和(自身を含む): 688347296

約数和(自身を除く): 467096084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 67537, 135074, 202611, 270148, 405222, 472759, 607833, 810444, 877981, 945518, 1215666, 1418277, 1755962, 1891036, 2431332, 2633943, 2836554, 3511924, 4254831, 5267886, 5673108, 6145867, 7901829, 8509662, 10535772, 12291734, 15803658, 17019324, 18437601, 24583468, 31607316, 36875202, 55312803, 73750404, 110625606, 221251212]

約数ペア:

[(1, 221251212), (2, 110625606), (3, 73750404), (4, 55312803), (6, 36875202), (7, 31607316), (9, 24583468), (12, 18437601), (13, 17019324), (14, 15803658), (18, 12291734), (21, 10535772), (26, 8509662), (28, 7901829), (36, 6145867), (39, 5673108), (42, 5267886), (52, 4254831), (63, 3511924), (78, 2836554), (84, 2633943), (91, 2431332), (117, 1891036), (126, 1755962), (156, 1418277), (182, 1215666), (234, 945518), (252, 877981), (273, 810444), (364, 607833), (468, 472759), (546, 405222), (819, 270148), (1092, 202611), (1638, 135074), (3276, 67537)]