47751921

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 87141600

約数和(自身を除く): 39389679

約数列:

[1, 3, 7, 9, 19, 21, 41, 49, 57, 63, 123, 133, 139, 147, 171, 287, 369, 399, 417, 441, 779, 861, 931, 973, 1197, 1251, 2009, 2337, 2583, 2641, 2793, 2919, 5453, 5699, 6027, 6811, 7011, 7923, 8379, 8757, 16359, 17097, 18081, 18487, 20433, 23769, 38171, 39893, 49077, 51291, 55461, 61299, 108281, 114513, 119679, 129409, 166383, 279251, 324843, 343539, 359037, 388227, 757967, 837753, 974529, 1164681, 2273901, 2513259, 5305769, 6821703, 15917307, 47751921]

約数ペア:

[(1, 47751921), (3, 15917307), (7, 6821703), (9, 5305769), (19, 2513259), (21, 2273901), (41, 1164681), (49, 974529), (57, 837753), (63, 757967), (123, 388227), (133, 359037), (139, 343539), (147, 324843), (171, 279251), (287, 166383), (369, 129409), (399, 119679), (417, 114513), (441, 108281), (779, 61299), (861, 55461), (931, 51291), (973, 49077), (1197, 39893), (1251, 38171), (2009, 23769), (2337, 20433), (2583, 18487), (2641, 18081), (2793, 17097), (2919, 16359), (5453, 8757), (5699, 8379), (6027, 7923), (6811, 7011)]