21456930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:312

約数の個数: 96

約数和(自身を含む): 59294592

約数和(自身を除く): 37837662

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 121, 138, 165, 230, 242, 253, 257, 330, 345, 363, 506, 514, 605, 690, 726, 759, 771, 1210, 1265, 1285, 1518, 1542, 1815, 2530, 2570, 2783, 2827, 3630, 3795, 3855, 5566, 5654, 5911, 7590, 7710, 8349, 8481, 11822, 13915, 14135, 16698, 16962, 17733, 27830, 28270, 29555, 31097, 35466, 41745, 42405, 59110, 62194, 65021, 83490, 84810, 88665, 93291, 130042, 155485, 177330, 186582, 195063, 310970, 325105, 390126, 466455, 650210, 715231, 932910, 975315, 1430462, 1950630, 2145693, 3576155, 4291386, 7152310, 10728465, 21456930]

約数ペア:

[(1, 21456930), (2, 10728465), (3, 7152310), (5, 4291386), (6, 3576155), (10, 2145693), (11, 1950630), (15, 1430462), (22, 975315), (23, 932910), (30, 715231), (33, 650210), (46, 466455), (55, 390126), (66, 325105), (69, 310970), (110, 195063), (115, 186582), (121, 177330), (138, 155485), (165, 130042), (230, 93291), (242, 88665), (253, 84810), (257, 83490), (330, 65021), (345, 62194), (363, 59110), (506, 42405), (514, 41745), (605, 35466), (690, 31097), (726, 29555), (759, 28270), (771, 27830), (1210, 17733), (1265, 16962), (1285, 16698), (1518, 14135), (1542, 13915), (1815, 11822), (2530, 8481), (2570, 8349), (2783, 7710), (2827, 7590), (3630, 5911), (3795, 5654), (3855, 5566)]