19217770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 22150550

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 89, 110, 130, 143, 151, 178, 286, 302, 445, 715, 755, 890, 979, 1157, 1430, 1510, 1661, 1958, 1963, 2314, 3322, 3926, 4895, 5785, 8305, 9790, 9815, 11570, 12727, 13439, 16610, 19630, 21593, 25454, 26878, 43186, 63635, 67195, 107965, 127270, 134390, 147829, 174707, 215930, 295658, 349414, 739145, 873535, 1478290, 1747070, 1921777, 3843554, 9608885, 19217770]

約数ペア:

[(1, 19217770), (2, 9608885), (5, 3843554), (10, 1921777), (11, 1747070), (13, 1478290), (22, 873535), (26, 739145), (55, 349414), (65, 295658), (89, 215930), (110, 174707), (130, 147829), (143, 134390), (151, 127270), (178, 107965), (286, 67195), (302, 63635), (445, 43186), (715, 26878), (755, 25454), (890, 21593), (979, 19630), (1157, 16610), (1430, 13439), (1510, 12727), (1661, 11570), (1958, 9815), (1963, 9790), (2314, 8305), (3322, 5785), (3926, 4895)]