21573804970

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{577}}^1\times {\mathrm{727}}^1$

素因数の和:1487

約数の個数: 64

約数和(自身を含む): 40294275840

約数和(自身を除く): 18720470870

約数列:

[1, 2, 5, 10, 37, 74, 139, 185, 278, 370, 577, 695, 727, 1154, 1390, 1454, 2885, 3635, 5143, 5770, 7270, 10286, 21349, 25715, 26899, 42698, 51430, 53798, 80203, 101053, 106745, 134495, 160406, 202106, 213490, 268990, 401015, 419479, 505265, 802030, 838958, 1010530, 2097395, 2967511, 3738961, 4194790, 5935022, 7477922, 14837555, 15520723, 18694805, 29675110, 31041446, 37389610, 58307581, 77603615, 116615162, 155207230, 291537905, 583075810, 2157380497, 4314760994, 10786902485, 21573804970]

約数ペア:

[(1, 21573804970), (2, 10786902485), (5, 4314760994), (10, 2157380497), (37, 583075810), (74, 291537905), (139, 155207230), (185, 116615162), (278, 77603615), (370, 58307581), (577, 37389610), (695, 31041446), (727, 29675110), (1154, 18694805), (1390, 15520723), (1454, 14837555), (2885, 7477922), (3635, 5935022), (5143, 4194790), (5770, 3738961), (7270, 2967511), (10286, 2097395), (21349, 1010530), (25715, 838958), (26899, 802030), (42698, 505265), (51430, 419479), (53798, 401015), (80203, 268990), (101053, 213490), (106745, 202106), (134495, 160406)]