21221309570

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{263}}^1\times {\mathrm{2543}}^1$

素因数の和:2999

約数の個数: 64

約数和(自身を含む): 40619335680

約数和(自身を除く): 19398026110

約数列:

[1, 2, 5, 10, 19, 38, 95, 167, 190, 263, 334, 526, 835, 1315, 1670, 2543, 2630, 3173, 4997, 5086, 6346, 9994, 12715, 15865, 24985, 25430, 31730, 43921, 48317, 49970, 87842, 96634, 219605, 241585, 424681, 439210, 483170, 668809, 834499, 849362, 1337618, 1668998, 2123405, 3344045, 4172495, 4246810, 6688090, 8068939, 8344990, 12707371, 16137878, 25414742, 40344695, 63536855, 80689390, 111691103, 127073710, 223382206, 558455515, 1116911030, 2122130957, 4244261914, 10610654785, 21221309570]

約数ペア:

[(1, 21221309570), (2, 10610654785), (5, 4244261914), (10, 2122130957), (19, 1116911030), (38, 558455515), (95, 223382206), (167, 127073710), (190, 111691103), (263, 80689390), (334, 63536855), (526, 40344695), (835, 25414742), (1315, 16137878), (1670, 12707371), (2543, 8344990), (2630, 8068939), (3173, 6688090), (4997, 4246810), (5086, 4172495), (6346, 3344045), (9994, 2123405), (12715, 1668998), (15865, 1337618), (24985, 849362), (25430, 834499), (31730, 668809), (43921, 483170), (48317, 439210), (49970, 424681), (87842, 241585), (96634, 219605)]