21808930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 46884096

約数和(自身を除く): 25075166

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 101, 110, 130, 143, 151, 202, 286, 302, 505, 715, 755, 1010, 1111, 1313, 1430, 1510, 1661, 1963, 2222, 2626, 3322, 3926, 5555, 6565, 8305, 9815, 11110, 13130, 14443, 15251, 16610, 19630, 21593, 28886, 30502, 43186, 72215, 76255, 107965, 144430, 152510, 167761, 198263, 215930, 335522, 396526, 838805, 991315, 1677610, 1982630, 2180893, 4361786, 10904465, 21808930]

約数ペア:

[(1, 21808930), (2, 10904465), (5, 4361786), (10, 2180893), (11, 1982630), (13, 1677610), (22, 991315), (26, 838805), (55, 396526), (65, 335522), (101, 215930), (110, 198263), (130, 167761), (143, 152510), (151, 144430), (202, 107965), (286, 76255), (302, 72215), (505, 43186), (715, 30502), (755, 28886), (1010, 21593), (1111, 19630), (1313, 16610), (1430, 15251), (1510, 14443), (1661, 13130), (1963, 11110), (2222, 9815), (2626, 8305), (3322, 6565), (3926, 5555)]