20178796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:594

約数の個数: 48

約数和(自身を含む): 41640480

約数和(自身を除く): 21461684

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 53, 68, 106, 187, 212, 374, 509, 583, 748, 901, 1018, 1166, 1802, 2036, 2332, 3604, 5599, 8653, 9911, 11198, 17306, 19822, 22396, 26977, 34612, 39644, 53954, 95183, 107908, 190366, 296747, 380732, 458609, 593494, 917218, 1186988, 1834436, 5044699, 10089398, 20178796]

約数ペア:

[(1, 20178796), (2, 10089398), (4, 5044699), (11, 1834436), (17, 1186988), (22, 917218), (34, 593494), (44, 458609), (53, 380732), (68, 296747), (106, 190366), (187, 107908), (212, 95183), (374, 53954), (509, 39644), (583, 34612), (748, 26977), (901, 22396), (1018, 19822), (1166, 17306), (1802, 11198), (2036, 9911), (2332, 8653), (3604, 5599)]