217207908

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{911}}^1$

素因数の和:1137

約数の個数: 72

約数和(自身を含む): 567665280

約数和(自身を除く): 350457372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 179, 222, 333, 358, 444, 537, 666, 716, 911, 1074, 1332, 1611, 1822, 2148, 2733, 3222, 3644, 5466, 6444, 6623, 8199, 10932, 13246, 16398, 19869, 26492, 32796, 33707, 39738, 59607, 67414, 79476, 101121, 119214, 134828, 163069, 202242, 238428, 303363, 326138, 404484, 489207, 606726, 652276, 978414, 1213452, 1467621, 1956828, 2935242, 5870484, 6033553, 12067106, 18100659, 24134212, 36201318, 54301977, 72402636, 108603954, 217207908]

約数ペア:

[(1, 217207908), (2, 108603954), (3, 72402636), (4, 54301977), (6, 36201318), (9, 24134212), (12, 18100659), (18, 12067106), (36, 6033553), (37, 5870484), (74, 2935242), (111, 1956828), (148, 1467621), (179, 1213452), (222, 978414), (333, 652276), (358, 606726), (444, 489207), (537, 404484), (666, 326138), (716, 303363), (911, 238428), (1074, 202242), (1332, 163069), (1611, 134828), (1822, 119214), (2148, 101121), (2733, 79476), (3222, 67414), (3644, 59607), (5466, 39738), (6444, 33707), (6623, 32796), (8199, 26492), (10932, 19869), (13246, 16398)]