20319327

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 36042240

約数和(自身を除く): 15722913

約数列:

[1, 3, 7, 9, 21, 23, 37, 63, 69, 111, 161, 207, 259, 333, 379, 483, 777, 851, 1137, 1449, 2331, 2553, 2653, 3411, 5957, 7659, 7959, 8717, 14023, 17871, 23877, 26151, 42069, 53613, 61019, 78453, 98161, 126207, 183057, 294483, 322529, 549171, 883449, 967587, 2257703, 2902761, 6773109, 20319327]

約数ペア:

[(1, 20319327), (3, 6773109), (7, 2902761), (9, 2257703), (21, 967587), (23, 883449), (37, 549171), (63, 322529), (69, 294483), (111, 183057), (161, 126207), (207, 98161), (259, 78453), (333, 61019), (379, 53613), (483, 42069), (777, 26151), (851, 23877), (1137, 17871), (1449, 14023), (2331, 8717), (2553, 7959), (2653, 7659), (3411, 5957)]