20057087631

素因数分解:

$3^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{307}}^1\times {\mathrm{1993}}^1$

素因数の和:2540

約数の個数: 48

約数和(自身を含む): 31365970944

約数和(自身を除く): 11308883313

約数列:

[1, 3, 7, 21, 49, 147, 223, 307, 669, 921, 1561, 1993, 2149, 4683, 5979, 6447, 10927, 13951, 15043, 32781, 41853, 45129, 68461, 97657, 205383, 292971, 444439, 479227, 611851, 1333317, 1437681, 1835553, 3111073, 3354589, 4282957, 9333219, 10063767, 12848871, 21777511, 29980699, 65332533, 89942097, 136442773, 409328319, 955099411, 2865298233, 6685695877, 20057087631]

約数ペア:

[(1, 20057087631), (3, 6685695877), (7, 2865298233), (21, 955099411), (49, 409328319), (147, 136442773), (223, 89942097), (307, 65332533), (669, 29980699), (921, 21777511), (1561, 12848871), (1993, 10063767), (2149, 9333219), (4683, 4282957), (5979, 3354589), (6447, 3111073), (10927, 1835553), (13951, 1437681), (15043, 1333317), (32781, 611851), (41853, 479227), (45129, 444439), (68461, 292971), (97657, 205383)]