21083348128

素因数分解:

$2^5\times {\mathrm{89}}^1\times {\mathrm{401}}^1\times {\mathrm{18461}}^1$

素因数の和:18961

約数の個数: 48

約数和(自身を含む): 42081175080

約数和(自身を除く): 20997826952

約数列:

[1, 2, 4, 8, 16, 32, 89, 178, 356, 401, 712, 802, 1424, 1604, 2848, 3208, 6416, 12832, 18461, 35689, 36922, 71378, 73844, 142756, 147688, 285512, 295376, 571024, 590752, 1142048, 1643029, 3286058, 6572116, 7402861, 13144232, 14805722, 26288464, 29611444, 52576928, 59222888, 118445776, 236891552, 658854629, 1317709258, 2635418516, 5270837032, 10541674064, 21083348128]

約数ペア:

[(1, 21083348128), (2, 10541674064), (4, 5270837032), (8, 2635418516), (16, 1317709258), (32, 658854629), (89, 236891552), (178, 118445776), (356, 59222888), (401, 52576928), (712, 29611444), (802, 26288464), (1424, 14805722), (1604, 13144232), (2848, 7402861), (3208, 6572116), (6416, 3286058), (12832, 1643029), (18461, 1142048), (35689, 590752), (36922, 571024), (71378, 295376), (73844, 285512), (142756, 147688)]