20210692978

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{67}}^1\times {\mathrm{3203}}^1$

素因数の和:3348

約数の個数: 72

約数和(自身を含む): 36995319216

約数和(自身を除く): 16784626238

約数列:

[1, 2, 7, 14, 31, 49, 62, 67, 98, 134, 217, 434, 469, 938, 961, 1519, 1922, 2077, 3038, 3203, 3283, 4154, 6406, 6566, 6727, 13454, 14539, 22421, 29078, 44842, 47089, 64387, 94178, 99293, 101773, 128774, 156947, 198586, 203546, 214601, 313894, 429202, 450709, 695051, 901418, 1390102, 1502207, 3004414, 3078083, 3154963, 4865357, 6156166, 6309926, 6652631, 9730714, 10515449, 13305262, 21030898, 21546581, 43093162, 46568417, 93136834, 150826067, 206231561, 301652134, 325978919, 412463122, 651957838, 1443620927, 2887241854, 10105346489, 20210692978]

約数ペア:

[(1, 20210692978), (2, 10105346489), (7, 2887241854), (14, 1443620927), (31, 651957838), (49, 412463122), (62, 325978919), (67, 301652134), (98, 206231561), (134, 150826067), (217, 93136834), (434, 46568417), (469, 43093162), (938, 21546581), (961, 21030898), (1519, 13305262), (1922, 10515449), (2077, 9730714), (3038, 6652631), (3203, 6309926), (3283, 6156166), (4154, 4865357), (6406, 3154963), (6566, 3078083), (6727, 3004414), (13454, 1502207), (14539, 1390102), (22421, 901418), (29078, 695051), (44842, 450709), (47089, 429202), (64387, 313894), (94178, 214601), (99293, 203546), (101773, 198586), (128774, 156947)]