21990959956

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{141793}}^1$

素因数の和:142024

約数の個数: 48

約数和(自身を含む): 45737072640

約数和(自身を除く): 23746112684

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 191, 203, 382, 406, 764, 812, 1337, 2674, 5348, 5539, 11078, 22156, 38773, 77546, 141793, 155092, 283586, 567172, 992551, 1985102, 3970204, 4111997, 8223994, 16447988, 27082463, 28783979, 54164926, 57567958, 108329852, 115135916, 189577241, 379154482, 758308964, 785391427, 1570782854, 3141565708, 5497739989, 10995479978, 21990959956]

約数ペア:

[(1, 21990959956), (2, 10995479978), (4, 5497739989), (7, 3141565708), (14, 1570782854), (28, 785391427), (29, 758308964), (58, 379154482), (116, 189577241), (191, 115135916), (203, 108329852), (382, 57567958), (406, 54164926), (764, 28783979), (812, 27082463), (1337, 16447988), (2674, 8223994), (5348, 4111997), (5539, 3970204), (11078, 1985102), (22156, 992551), (38773, 567172), (77546, 283586), (141793, 155092)]