21540564

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{577}}^1$

素因数の和:665

約数の個数: 72

約数和(自身を含む): 58699368

約数和(自身を除く): 37158804

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 61, 68, 102, 122, 153, 183, 204, 244, 306, 366, 549, 577, 612, 732, 1037, 1098, 1154, 1731, 2074, 2196, 2308, 3111, 3462, 4148, 5193, 6222, 6924, 9333, 9809, 10386, 12444, 18666, 19618, 20772, 29427, 35197, 37332, 39236, 58854, 70394, 88281, 105591, 117708, 140788, 176562, 211182, 316773, 353124, 422364, 598349, 633546, 1196698, 1267092, 1795047, 2393396, 3590094, 5385141, 7180188, 10770282, 21540564]

約数ペア:

[(1, 21540564), (2, 10770282), (3, 7180188), (4, 5385141), (6, 3590094), (9, 2393396), (12, 1795047), (17, 1267092), (18, 1196698), (34, 633546), (36, 598349), (51, 422364), (61, 353124), (68, 316773), (102, 211182), (122, 176562), (153, 140788), (183, 117708), (204, 105591), (244, 88281), (306, 70394), (366, 58854), (549, 39236), (577, 37332), (612, 35197), (732, 29427), (1037, 20772), (1098, 19618), (1154, 18666), (1731, 12444), (2074, 10386), (2196, 9809), (2308, 9333), (3111, 6924), (3462, 6222), (4148, 5193)]