21292113311

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1\times {\mathrm{5927}}^1$

素因数の和:6431

約数の個数: 32

約数和(自身を含む): 25936754688

約数和(自身を除く): 4644641377

約数列:

[1, 7, 23, 53, 161, 371, 421, 1219, 2947, 5927, 8533, 9683, 22313, 41489, 67781, 136321, 156191, 314131, 513199, 954247, 2198917, 2495267, 3592393, 7225013, 17466869, 50575091, 57391141, 132249151, 401737987, 925744057, 3041730473, 21292113311]

約数ペア:

[(1, 21292113311), (7, 3041730473), (23, 925744057), (53, 401737987), (161, 132249151), (371, 57391141), (421, 50575091), (1219, 17466869), (2947, 7225013), (5927, 3592393), (8533, 2495267), (9683, 2198917), (22313, 954247), (41489, 513199), (67781, 314131), (136321, 156191)]