19811946

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 54282240

約数和(自身を除く): 34470294

約数列:

[1, 2, 3, 6, 7, 11, 14, 19, 21, 22, 33, 37, 38, 42, 57, 61, 66, 74, 77, 111, 114, 122, 133, 154, 183, 209, 222, 231, 259, 266, 366, 399, 407, 418, 427, 462, 518, 627, 671, 703, 777, 798, 814, 854, 1159, 1221, 1254, 1281, 1342, 1406, 1463, 1554, 2013, 2109, 2257, 2318, 2442, 2562, 2849, 2926, 3477, 4026, 4218, 4389, 4514, 4697, 4921, 5698, 6771, 6954, 7733, 8113, 8547, 8778, 9394, 9842, 12749, 13542, 14091, 14763, 15466, 15799, 16226, 17094, 23199, 24339, 24827, 25498, 28182, 29526, 31598, 38247, 42883, 46398, 47397, 48678, 49654, 54131, 74481, 76494, 85766, 89243, 94794, 108262, 128649, 148962, 162393, 173789, 178486, 257298, 267729, 300181, 324786, 347578, 471713, 521367, 535458, 600362, 900543, 943426, 1042734, 1415139, 1801086, 2830278, 3301991, 6603982, 9905973, 19811946]

約数ペア:

[(1, 19811946), (2, 9905973), (3, 6603982), (6, 3301991), (7, 2830278), (11, 1801086), (14, 1415139), (19, 1042734), (21, 943426), (22, 900543), (33, 600362), (37, 535458), (38, 521367), (42, 471713), (57, 347578), (61, 324786), (66, 300181), (74, 267729), (77, 257298), (111, 178486), (114, 173789), (122, 162393), (133, 148962), (154, 128649), (183, 108262), (209, 94794), (222, 89243), (231, 85766), (259, 76494), (266, 74481), (366, 54131), (399, 49654), (407, 48678), (418, 47397), (427, 46398), (462, 42883), (518, 38247), (627, 31598), (671, 29526), (703, 28182), (777, 25498), (798, 24827), (814, 24339), (854, 23199), (1159, 17094), (1221, 16226), (1254, 15799), (1281, 15466), (1342, 14763), (1406, 14091), (1463, 13542), (1554, 12749), (2013, 9842), (2109, 9394), (2257, 8778), (2318, 8547), (2442, 8113), (2562, 7733), (2849, 6954), (2926, 6771), (3477, 5698), (4026, 4921), (4218, 4697), (4389, 4514)]