21575700

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:215

約数の個数: 144

約数和(自身を含む): 71037120

約数和(自身を除く): 49461420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 61, 75, 90, 100, 108, 122, 131, 135, 150, 180, 183, 225, 244, 262, 270, 300, 305, 366, 393, 450, 524, 540, 549, 610, 655, 675, 732, 786, 900, 915, 1098, 1179, 1220, 1310, 1350, 1525, 1572, 1647, 1830, 1965, 2196, 2358, 2620, 2700, 2745, 3050, 3275, 3294, 3537, 3660, 3930, 4575, 4716, 5490, 5895, 6100, 6550, 6588, 7074, 7860, 7991, 8235, 9150, 9825, 10980, 11790, 13100, 13725, 14148, 15982, 16470, 17685, 18300, 19650, 23580, 23973, 27450, 29475, 31964, 32940, 35370, 39300, 39955, 41175, 47946, 54900, 58950, 70740, 71919, 79910, 82350, 88425, 95892, 117900, 119865, 143838, 159820, 164700, 176850, 199775, 215757, 239730, 287676, 353700, 359595, 399550, 431514, 479460, 599325, 719190, 799100, 863028, 1078785, 1198650, 1438380, 1797975, 2157570, 2397300, 3595950, 4315140, 5393925, 7191900, 10787850, 21575700]

約数ペア:

[(1, 21575700), (2, 10787850), (3, 7191900), (4, 5393925), (5, 4315140), (6, 3595950), (9, 2397300), (10, 2157570), (12, 1797975), (15, 1438380), (18, 1198650), (20, 1078785), (25, 863028), (27, 799100), (30, 719190), (36, 599325), (45, 479460), (50, 431514), (54, 399550), (60, 359595), (61, 353700), (75, 287676), (90, 239730), (100, 215757), (108, 199775), (122, 176850), (131, 164700), (135, 159820), (150, 143838), (180, 119865), (183, 117900), (225, 95892), (244, 88425), (262, 82350), (270, 79910), (300, 71919), (305, 70740), (366, 58950), (393, 54900), (450, 47946), (524, 41175), (540, 39955), (549, 39300), (610, 35370), (655, 32940), (675, 31964), (732, 29475), (786, 27450), (900, 23973), (915, 23580), (1098, 19650), (1179, 18300), (1220, 17685), (1310, 16470), (1350, 15982), (1525, 14148), (1572, 13725), (1647, 13100), (1830, 11790), (1965, 10980), (2196, 9825), (2358, 9150), (2620, 8235), (2700, 7991), (2745, 7860), (3050, 7074), (3275, 6588), (3294, 6550), (3537, 6100), (3660, 5895), (3930, 5490), (4575, 4716)]