19918548

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{4729}}^1$

素因数の和:4758

約数の個数: 60

約数和(自身を含む): 56088340

約数和(自身を除く): 36169792

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 324, 351, 468, 702, 1053, 1404, 2106, 4212, 4729, 9458, 14187, 18916, 28374, 42561, 56748, 61477, 85122, 122954, 127683, 170244, 184431, 245908, 255366, 368862, 383049, 510732, 553293, 737724, 766098, 1106586, 1532196, 1659879, 2213172, 3319758, 4979637, 6639516, 9959274, 19918548]

約数ペア:

[(1, 19918548), (2, 9959274), (3, 6639516), (4, 4979637), (6, 3319758), (9, 2213172), (12, 1659879), (13, 1532196), (18, 1106586), (26, 766098), (27, 737724), (36, 553293), (39, 510732), (52, 383049), (54, 368862), (78, 255366), (81, 245908), (108, 184431), (117, 170244), (156, 127683), (162, 122954), (234, 85122), (324, 61477), (351, 56748), (468, 42561), (702, 28374), (1053, 18916), (1404, 14187), (2106, 9458), (4212, 4729)]