21419670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{839}}^1$

素因数の和:909

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 33738090

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 37, 46, 69, 74, 111, 115, 138, 185, 222, 230, 345, 370, 555, 690, 839, 851, 1110, 1678, 1702, 2517, 2553, 4195, 4255, 5034, 5106, 8390, 8510, 12585, 12765, 19297, 25170, 25530, 31043, 38594, 57891, 62086, 93129, 96485, 115782, 155215, 186258, 192970, 289455, 310430, 465645, 578910, 713989, 931290, 1427978, 2141967, 3569945, 4283934, 7139890, 10709835, 21419670]

約数ペア:

[(1, 21419670), (2, 10709835), (3, 7139890), (5, 4283934), (6, 3569945), (10, 2141967), (15, 1427978), (23, 931290), (30, 713989), (37, 578910), (46, 465645), (69, 310430), (74, 289455), (111, 192970), (115, 186258), (138, 155215), (185, 115782), (222, 96485), (230, 93129), (345, 62086), (370, 57891), (555, 38594), (690, 31043), (839, 25530), (851, 25170), (1110, 19297), (1678, 12765), (1702, 12585), (2517, 8510), (2553, 8390), (4195, 5106), (4255, 5034)]