21513576

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3461}}^1$

素因数の和:3514

約数の個数: 64

約数和(自身を含む): 63146880

約数和(自身を除く): 41633304

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 56, 74, 84, 111, 148, 168, 222, 259, 296, 444, 518, 777, 888, 1036, 1554, 2072, 3108, 3461, 6216, 6922, 10383, 13844, 20766, 24227, 27688, 41532, 48454, 72681, 83064, 96908, 128057, 145362, 193816, 256114, 290724, 384171, 512228, 581448, 768342, 896399, 1024456, 1536684, 1792798, 2689197, 3073368, 3585596, 5378394, 7171192, 10756788, 21513576]

約数ペア:

[(1, 21513576), (2, 10756788), (3, 7171192), (4, 5378394), (6, 3585596), (7, 3073368), (8, 2689197), (12, 1792798), (14, 1536684), (21, 1024456), (24, 896399), (28, 768342), (37, 581448), (42, 512228), (56, 384171), (74, 290724), (84, 256114), (111, 193816), (148, 145362), (168, 128057), (222, 96908), (259, 83064), (296, 72681), (444, 48454), (518, 41532), (777, 27688), (888, 24227), (1036, 20766), (1554, 13844), (2072, 10383), (3108, 6922), (3461, 6216)]