About the Number

221507988

221507987 ← → 221507989

2進数表記:1101001100111111000110010100

漢数字表記:二億二千百五十万七千九百八十八

素因数分解:

2 2 × 3 1 × 13 1 × 53 1 × 73 1 × 367 1

素因数の和:513
約数の個数: 96
約数和(自身を含む): 576446976
約数和(自身を除く): 354938988

約数列:
[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 73, 78, 106, 146, 156, 159, 212, 219, 292, 318, 367, 438, 636, 689, 734, 876, 949, 1101, 1378, 1468, 1898, 2067, 2202, 2756, 2847, 3796, 3869, 4134, 4404, 4771, 5694, 7738, 8268, 9542, 11388, 11607, 14313, 15476, 19084, 19451, 23214, 26791, 28626, 38902, 46428, 50297, 53582, 57252, 58353, 77804, 80373, 100594, 107164, 116706, 150891, 160746, 201188, 233412, 252863, 301782, 321492, 348283, 505726, 603564, 696566, 758589, 1011452, 1044849, 1393132, 1419923, 1517178, 2089698, 2839846, 3034356, 4179396, 4259769, 5679692, 8519538, 17039076, 18458999, 36917998, 55376997, 73835996, 110753994, 221507988]

約数ペア:
[(1, 221507988), (2, 110753994), (3, 73835996), (4, 55376997), (6, 36917998), (12, 18458999), (13, 17039076), (26, 8519538), (39, 5679692), (52, 4259769), (53, 4179396), (73, 3034356), (78, 2839846), (106, 2089698), (146, 1517178), (156, 1419923), (159, 1393132), (212, 1044849), (219, 1011452), (292, 758589), (318, 696566), (367, 603564), (438, 505726), (636, 348283), (689, 321492), (734, 301782), (876, 252863), (949, 233412), (1101, 201188), (1378, 160746), (1468, 150891), (1898, 116706), (2067, 107164), (2202, 100594), (2756, 80373), (2847, 77804), (3796, 58353), (3869, 57252), (4134, 53582), (4404, 50297), (4771, 46428), (5694, 38902), (7738, 28626), (8268, 26791), (9542, 23214), (11388, 19451), (11607, 19084), (14313, 15476)]

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