20444319

素因数分解:

$3^5\times 7^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 38093328

約数和(自身を除く): 17649009

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 81, 101, 119, 147, 153, 189, 243, 303, 357, 441, 459, 567, 707, 833, 909, 1071, 1323, 1377, 1701, 1717, 2121, 2499, 2727, 3213, 3969, 4131, 4949, 5151, 6363, 7497, 8181, 9639, 11907, 12019, 14847, 15453, 19089, 22491, 24543, 28917, 36057, 44541, 46359, 57267, 67473, 84133, 108171, 133623, 139077, 171801, 202419, 252399, 324513, 400869, 417231, 757197, 973539, 1202607, 2271591, 2920617, 6814773, 20444319]

約数ペア:

[(1, 20444319), (3, 6814773), (7, 2920617), (9, 2271591), (17, 1202607), (21, 973539), (27, 757197), (49, 417231), (51, 400869), (63, 324513), (81, 252399), (101, 202419), (119, 171801), (147, 139077), (153, 133623), (189, 108171), (243, 84133), (303, 67473), (357, 57267), (441, 46359), (459, 44541), (567, 36057), (707, 28917), (833, 24543), (909, 22491), (1071, 19089), (1323, 15453), (1377, 14847), (1701, 12019), (1717, 11907), (2121, 9639), (2499, 8181), (2727, 7497), (3213, 6363), (3969, 5151), (4131, 4949)]