21851760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13007}}^1$

素因数の和:13030

約数の個数: 80

約数和(自身を含む): 77423616

約数和(自身を除く): 55571856

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 13007, 26014, 39021, 52028, 65035, 78042, 91049, 104056, 130070, 156084, 182098, 195105, 208112, 260140, 273147, 312168, 364196, 390210, 455245, 520280, 546294, 624336, 728392, 780420, 910490, 1040560, 1092588, 1365735, 1456784, 1560840, 1820980, 2185176, 2731470, 3121680, 3641960, 4370352, 5462940, 7283920, 10925880, 21851760]

約数ペア:

[(1, 21851760), (2, 10925880), (3, 7283920), (4, 5462940), (5, 4370352), (6, 3641960), (7, 3121680), (8, 2731470), (10, 2185176), (12, 1820980), (14, 1560840), (15, 1456784), (16, 1365735), (20, 1092588), (21, 1040560), (24, 910490), (28, 780420), (30, 728392), (35, 624336), (40, 546294), (42, 520280), (48, 455245), (56, 390210), (60, 364196), (70, 312168), (80, 273147), (84, 260140), (105, 208112), (112, 195105), (120, 182098), (140, 156084), (168, 130070), (210, 104056), (240, 91049), (280, 78042), (336, 65035), (420, 52028), (560, 39021), (840, 26014), (1680, 13007)]