221551856

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{19697}}^1$

素因数の和:19761

約数の個数: 40

約数和(自身を含む): 464084880

約数和(自身を除く): 242533024

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 74, 76, 148, 152, 296, 304, 592, 703, 1406, 2812, 5624, 11248, 19697, 39394, 78788, 157576, 315152, 374243, 728789, 748486, 1457578, 1496972, 2915156, 2993944, 5830312, 5987888, 11660624, 13846991, 27693982, 55387964, 110775928, 221551856]

約数ペア:

[(1, 221551856), (2, 110775928), (4, 55387964), (8, 27693982), (16, 13846991), (19, 11660624), (37, 5987888), (38, 5830312), (74, 2993944), (76, 2915156), (148, 1496972), (152, 1457578), (296, 748486), (304, 728789), (592, 374243), (703, 315152), (1406, 157576), (2812, 78788), (5624, 39394), (11248, 19697)]