21900508384

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{973529}}^1$

素因数の和:973595

約数の個数: 48

約数和(自身を含む): 46612616400

約数和(自身を除く): 24712108016

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 74, 76, 148, 152, 296, 304, 592, 608, 703, 1184, 1406, 2812, 5624, 11248, 22496, 973529, 1947058, 3894116, 7788232, 15576464, 18497051, 31152928, 36020573, 36994102, 72041146, 73988204, 144082292, 147976408, 288164584, 295952816, 576329168, 591905632, 684390887, 1152658336, 1368781774, 2737563548, 5475127096, 10950254192, 21900508384]

約数ペア:

[(1, 21900508384), (2, 10950254192), (4, 5475127096), (8, 2737563548), (16, 1368781774), (19, 1152658336), (32, 684390887), (37, 591905632), (38, 576329168), (74, 295952816), (76, 288164584), (148, 147976408), (152, 144082292), (296, 73988204), (304, 72041146), (592, 36994102), (608, 36020573), (703, 31152928), (1184, 18497051), (1406, 15576464), (2812, 7788232), (5624, 3894116), (11248, 1947058), (22496, 973529)]