21519484

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{853}}^1$

素因数の和:934

約数の個数: 48

約数和(自身を含む): 46484928

約数和(自身を除く): 24965444

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 53, 68, 106, 119, 212, 238, 371, 476, 742, 853, 901, 1484, 1706, 1802, 3412, 3604, 5971, 6307, 11942, 12614, 14501, 23884, 25228, 29002, 45209, 58004, 90418, 101507, 180836, 203014, 316463, 406028, 632926, 768553, 1265852, 1537106, 3074212, 5379871, 10759742, 21519484]

約数ペア:

[(1, 21519484), (2, 10759742), (4, 5379871), (7, 3074212), (14, 1537106), (17, 1265852), (28, 768553), (34, 632926), (53, 406028), (68, 316463), (106, 203014), (119, 180836), (212, 101507), (238, 90418), (371, 58004), (476, 45209), (742, 29002), (853, 25228), (901, 23884), (1484, 14501), (1706, 12614), (1802, 11942), (3412, 6307), (3604, 5971)]