21887580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2551}}^1$

素因数の和:2587

約数の個数: 96

約数和(自身を含む): 72027648

約数和(自身を除く): 50140068

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 130, 132, 143, 156, 165, 195, 220, 260, 286, 330, 390, 429, 572, 660, 715, 780, 858, 1430, 1716, 2145, 2551, 2860, 4290, 5102, 7653, 8580, 10204, 12755, 15306, 25510, 28061, 30612, 33163, 38265, 51020, 56122, 66326, 76530, 84183, 99489, 112244, 132652, 140305, 153060, 165815, 168366, 198978, 280610, 331630, 336732, 364793, 397956, 420915, 497445, 561220, 663260, 729586, 841830, 994890, 1094379, 1459172, 1683660, 1823965, 1989780, 2188758, 3647930, 4377516, 5471895, 7295860, 10943790, 21887580]

約数ペア:

[(1, 21887580), (2, 10943790), (3, 7295860), (4, 5471895), (5, 4377516), (6, 3647930), (10, 2188758), (11, 1989780), (12, 1823965), (13, 1683660), (15, 1459172), (20, 1094379), (22, 994890), (26, 841830), (30, 729586), (33, 663260), (39, 561220), (44, 497445), (52, 420915), (55, 397956), (60, 364793), (65, 336732), (66, 331630), (78, 280610), (110, 198978), (130, 168366), (132, 165815), (143, 153060), (156, 140305), (165, 132652), (195, 112244), (220, 99489), (260, 84183), (286, 76530), (330, 66326), (390, 56122), (429, 51020), (572, 38265), (660, 33163), (715, 30612), (780, 28061), (858, 25510), (1430, 15306), (1716, 12755), (2145, 10204), (2551, 8580), (2860, 7653), (4290, 5102)]