20170969749

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{139753}}^1$

素因数の和:139874

約数の個数: 48

約数和(自身を含む): 34882598400

約数和(自身を除く): 14711628651

約数列:

[1, 3, 7, 9, 21, 29, 63, 79, 87, 203, 237, 261, 553, 609, 711, 1659, 1827, 2291, 4977, 6873, 16037, 20619, 48111, 139753, 144333, 419259, 978271, 1257777, 2934813, 4052837, 8804439, 11040487, 12158511, 28369859, 33121461, 36475533, 77283409, 85109577, 99364383, 231850227, 255328731, 320174123, 695550681, 960522369, 2241218861, 2881567107, 6723656583, 20170969749]

約数ペア:

[(1, 20170969749), (3, 6723656583), (7, 2881567107), (9, 2241218861), (21, 960522369), (29, 695550681), (63, 320174123), (79, 255328731), (87, 231850227), (203, 99364383), (237, 85109577), (261, 77283409), (553, 36475533), (609, 33121461), (711, 28369859), (1659, 12158511), (1827, 11040487), (2291, 8804439), (4977, 4052837), (6873, 2934813), (16037, 1257777), (20619, 978271), (48111, 419259), (139753, 144333)]