21641004

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 70377216

約数和(自身を除く): 48736212

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 37, 42, 44, 63, 66, 74, 77, 84, 99, 111, 126, 132, 148, 154, 198, 211, 222, 231, 252, 259, 308, 333, 396, 407, 422, 444, 462, 518, 633, 666, 693, 777, 814, 844, 924, 1036, 1221, 1266, 1332, 1386, 1477, 1554, 1628, 1899, 2321, 2331, 2442, 2532, 2772, 2849, 2954, 3108, 3663, 3798, 4431, 4642, 4662, 4884, 5698, 5908, 6963, 7326, 7596, 7807, 8547, 8862, 9284, 9324, 11396, 13293, 13926, 14652, 15614, 16247, 17094, 17724, 20889, 23421, 25641, 26586, 27852, 31228, 32494, 34188, 41778, 46842, 48741, 51282, 53172, 54649, 64988, 70263, 83556, 85877, 93684, 97482, 102564, 109298, 140526, 146223, 163947, 171754, 194964, 218596, 257631, 281052, 292446, 327894, 343508, 491841, 515262, 584892, 601139, 655788, 772893, 983682, 1030524, 1202278, 1545786, 1803417, 1967364, 2404556, 3091572, 3606834, 5410251, 7213668, 10820502, 21641004]

約数ペア:

[(1, 21641004), (2, 10820502), (3, 7213668), (4, 5410251), (6, 3606834), (7, 3091572), (9, 2404556), (11, 1967364), (12, 1803417), (14, 1545786), (18, 1202278), (21, 1030524), (22, 983682), (28, 772893), (33, 655788), (36, 601139), (37, 584892), (42, 515262), (44, 491841), (63, 343508), (66, 327894), (74, 292446), (77, 281052), (84, 257631), (99, 218596), (111, 194964), (126, 171754), (132, 163947), (148, 146223), (154, 140526), (198, 109298), (211, 102564), (222, 97482), (231, 93684), (252, 85877), (259, 83556), (308, 70263), (333, 64988), (396, 54649), (407, 53172), (422, 51282), (444, 48741), (462, 46842), (518, 41778), (633, 34188), (666, 32494), (693, 31228), (777, 27852), (814, 26586), (844, 25641), (924, 23421), (1036, 20889), (1221, 17724), (1266, 17094), (1332, 16247), (1386, 15614), (1477, 14652), (1554, 13926), (1628, 13293), (1899, 11396), (2321, 9324), (2331, 9284), (2442, 8862), (2532, 8547), (2772, 7807), (2849, 7596), (2954, 7326), (3108, 6963), (3663, 5908), (3798, 5698), (4431, 4884), (4642, 4662)]