20994552

素因数分解:

$2^3\times 3^4\times {\mathrm{179}}^1\times {\mathrm{181}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 59459400

約数和(自身を除く): 38464848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 179, 181, 216, 324, 358, 362, 537, 543, 648, 716, 724, 1074, 1086, 1432, 1448, 1611, 1629, 2148, 2172, 3222, 3258, 4296, 4344, 4833, 4887, 6444, 6516, 9666, 9774, 12888, 13032, 14499, 14661, 19332, 19548, 28998, 29322, 32399, 38664, 39096, 57996, 58644, 64798, 97197, 115992, 117288, 129596, 194394, 259192, 291591, 388788, 583182, 777576, 874773, 1166364, 1749546, 2332728, 2624319, 3499092, 5248638, 6998184, 10497276, 20994552]

約数ペア:

[(1, 20994552), (2, 10497276), (3, 6998184), (4, 5248638), (6, 3499092), (8, 2624319), (9, 2332728), (12, 1749546), (18, 1166364), (24, 874773), (27, 777576), (36, 583182), (54, 388788), (72, 291591), (81, 259192), (108, 194394), (162, 129596), (179, 117288), (181, 115992), (216, 97197), (324, 64798), (358, 58644), (362, 57996), (537, 39096), (543, 38664), (648, 32399), (716, 29322), (724, 28998), (1074, 19548), (1086, 19332), (1432, 14661), (1448, 14499), (1611, 13032), (1629, 12888), (2148, 9774), (2172, 9666), (3222, 6516), (3258, 6444), (4296, 4887), (4344, 4833)]