21004060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{593}}^1$

素因数の和:643

約数の個数: 96

約数和(自身を含む): 57480192

約数和(自身を除く): 36476132

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 35, 44, 46, 55, 70, 77, 92, 110, 115, 140, 154, 161, 220, 230, 253, 308, 322, 385, 460, 506, 593, 644, 770, 805, 1012, 1186, 1265, 1540, 1610, 1771, 2372, 2530, 2965, 3220, 3542, 4151, 5060, 5930, 6523, 7084, 8302, 8855, 11860, 13046, 13639, 16604, 17710, 20755, 26092, 27278, 32615, 35420, 41510, 45661, 54556, 65230, 68195, 83020, 91322, 95473, 130460, 136390, 150029, 182644, 190946, 228305, 272780, 300058, 381892, 456610, 477365, 600116, 750145, 913220, 954730, 1050203, 1500290, 1909460, 2100406, 3000580, 4200812, 5251015, 10502030, 21004060]

約数ペア:

[(1, 21004060), (2, 10502030), (4, 5251015), (5, 4200812), (7, 3000580), (10, 2100406), (11, 1909460), (14, 1500290), (20, 1050203), (22, 954730), (23, 913220), (28, 750145), (35, 600116), (44, 477365), (46, 456610), (55, 381892), (70, 300058), (77, 272780), (92, 228305), (110, 190946), (115, 182644), (140, 150029), (154, 136390), (161, 130460), (220, 95473), (230, 91322), (253, 83020), (308, 68195), (322, 65230), (385, 54556), (460, 45661), (506, 41510), (593, 35420), (644, 32615), (770, 27278), (805, 26092), (1012, 20755), (1186, 17710), (1265, 16604), (1540, 13639), (1610, 13046), (1771, 11860), (2372, 8855), (2530, 8302), (2965, 7084), (3220, 6523), (3542, 5930), (4151, 5060)]