21915516

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:283

約数の個数: 96

約数和(自身を含む): 62899200

約数和(自身を除く): 40983684

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 103, 119, 149, 204, 206, 238, 298, 309, 357, 412, 447, 476, 596, 618, 714, 721, 894, 1043, 1236, 1428, 1442, 1751, 1788, 2086, 2163, 2533, 2884, 3129, 3502, 4172, 4326, 5066, 5253, 6258, 7004, 7599, 8652, 10132, 10506, 12257, 12516, 15198, 15347, 17731, 21012, 24514, 30396, 30694, 35462, 36771, 46041, 49028, 53193, 61388, 70924, 73542, 92082, 106386, 107429, 147084, 184164, 212772, 214858, 260899, 322287, 429716, 521798, 644574, 782697, 1043596, 1289148, 1565394, 1826293, 3130788, 3652586, 5478879, 7305172, 10957758, 21915516]

約数ペア:

[(1, 21915516), (2, 10957758), (3, 7305172), (4, 5478879), (6, 3652586), (7, 3130788), (12, 1826293), (14, 1565394), (17, 1289148), (21, 1043596), (28, 782697), (34, 644574), (42, 521798), (51, 429716), (68, 322287), (84, 260899), (102, 214858), (103, 212772), (119, 184164), (149, 147084), (204, 107429), (206, 106386), (238, 92082), (298, 73542), (309, 70924), (357, 61388), (412, 53193), (447, 49028), (476, 46041), (596, 36771), (618, 35462), (714, 30694), (721, 30396), (894, 24514), (1043, 21012), (1236, 17731), (1428, 15347), (1442, 15198), (1751, 12516), (1788, 12257), (2086, 10506), (2163, 10132), (2533, 8652), (2884, 7599), (3129, 7004), (3502, 6258), (4172, 5253), (4326, 5066)]