21291264764

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3547}}^1\times {\mathrm{19489}}^1$

素因数の和:23058

約数の個数: 48

約数和(自身を含む): 46469149440

約数和(自身を除く): 25177884676

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 3547, 7094, 14188, 19489, 24829, 38978, 39017, 49658, 77956, 78034, 99316, 136423, 156068, 214379, 272846, 273119, 428758, 545692, 546238, 857516, 1092476, 1500653, 3001306, 6002612, 69127483, 138254966, 276509932, 483892381, 760402313, 967784762, 1520804626, 1935569524, 3041609252, 5322816191, 10645632382, 21291264764]

約数ペア:

[(1, 21291264764), (2, 10645632382), (4, 5322816191), (7, 3041609252), (11, 1935569524), (14, 1520804626), (22, 967784762), (28, 760402313), (44, 483892381), (77, 276509932), (154, 138254966), (308, 69127483), (3547, 6002612), (7094, 3001306), (14188, 1500653), (19489, 1092476), (24829, 857516), (38978, 546238), (39017, 545692), (49658, 428758), (77956, 273119), (78034, 272846), (99316, 214379), (136423, 156068)]