21000480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{653}}^1$

素因数の和:738

約数の個数: 96

約数和(自身を含む): 67241664

約数和(自身を除く): 46241184

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 67, 80, 96, 120, 134, 160, 201, 240, 268, 335, 402, 480, 536, 653, 670, 804, 1005, 1072, 1306, 1340, 1608, 1959, 2010, 2144, 2612, 2680, 3216, 3265, 3918, 4020, 5224, 5360, 6432, 6530, 7836, 8040, 9795, 10448, 10720, 13060, 15672, 16080, 19590, 20896, 26120, 31344, 32160, 39180, 43751, 52240, 62688, 78360, 87502, 104480, 131253, 156720, 175004, 218755, 262506, 313440, 350008, 437510, 525012, 656265, 700016, 875020, 1050024, 1312530, 1400032, 1750040, 2100048, 2625060, 3500080, 4200096, 5250120, 7000160, 10500240, 21000480]

約数ペア:

[(1, 21000480), (2, 10500240), (3, 7000160), (4, 5250120), (5, 4200096), (6, 3500080), (8, 2625060), (10, 2100048), (12, 1750040), (15, 1400032), (16, 1312530), (20, 1050024), (24, 875020), (30, 700016), (32, 656265), (40, 525012), (48, 437510), (60, 350008), (67, 313440), (80, 262506), (96, 218755), (120, 175004), (134, 156720), (160, 131253), (201, 104480), (240, 87502), (268, 78360), (335, 62688), (402, 52240), (480, 43751), (536, 39180), (653, 32160), (670, 31344), (804, 26120), (1005, 20896), (1072, 19590), (1306, 16080), (1340, 15672), (1608, 13060), (1959, 10720), (2010, 10448), (2144, 9795), (2612, 8040), (2680, 7836), (3216, 6530), (3265, 6432), (3918, 5360), (4020, 5224)]