21416220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{739}}^1$

素因数の和:784

約数の個数: 144

約数和(自身を含む): 77575680

約数和(自身を除く): 56159460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 690, 739, 805, 828, 966, 1035, 1260, 1380, 1449, 1478, 1610, 1932, 2070, 2217, 2415, 2898, 2956, 3220, 3695, 4140, 4434, 4830, 5173, 5796, 6651, 7245, 7390, 8868, 9660, 10346, 11085, 13302, 14490, 14780, 15519, 16997, 20692, 22170, 25865, 26604, 28980, 31038, 33255, 33994, 44340, 46557, 50991, 51730, 62076, 66510, 67988, 77595, 84985, 93114, 101982, 103460, 118979, 133020, 152973, 155190, 169970, 186228, 203964, 232785, 237958, 254955, 305946, 310380, 339940, 356937, 465570, 475916, 509910, 594895, 611892, 713874, 764865, 931140, 1019820, 1070811, 1189790, 1427748, 1529730, 1784685, 2141622, 2379580, 3059460, 3569370, 4283244, 5354055, 7138740, 10708110, 21416220]

約数ペア:

[(1, 21416220), (2, 10708110), (3, 7138740), (4, 5354055), (5, 4283244), (6, 3569370), (7, 3059460), (9, 2379580), (10, 2141622), (12, 1784685), (14, 1529730), (15, 1427748), (18, 1189790), (20, 1070811), (21, 1019820), (23, 931140), (28, 764865), (30, 713874), (35, 611892), (36, 594895), (42, 509910), (45, 475916), (46, 465570), (60, 356937), (63, 339940), (69, 310380), (70, 305946), (84, 254955), (90, 237958), (92, 232785), (105, 203964), (115, 186228), (126, 169970), (138, 155190), (140, 152973), (161, 133020), (180, 118979), (207, 103460), (210, 101982), (230, 93114), (252, 84985), (276, 77595), (315, 67988), (322, 66510), (345, 62076), (414, 51730), (420, 50991), (460, 46557), (483, 44340), (630, 33994), (644, 33255), (690, 31038), (739, 28980), (805, 26604), (828, 25865), (966, 22170), (1035, 20692), (1260, 16997), (1380, 15519), (1449, 14780), (1478, 14490), (1610, 13302), (1932, 11085), (2070, 10346), (2217, 9660), (2415, 8868), (2898, 7390), (2956, 7245), (3220, 6651), (3695, 5796), (4140, 5173), (4434, 4830)]