19991862

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:234

約数の個数: 72

約数和(自身を含む): 48674808

約数和(自身を除く): 28682946

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 67, 99, 121, 134, 137, 198, 201, 242, 274, 363, 402, 411, 603, 726, 737, 822, 1089, 1206, 1233, 1474, 1507, 2178, 2211, 2466, 3014, 4422, 4521, 6633, 8107, 9042, 9179, 13266, 13563, 16214, 16577, 18358, 24321, 27126, 27537, 33154, 48642, 49731, 55074, 72963, 82611, 99462, 100969, 145926, 149193, 165222, 201938, 298386, 302907, 605814, 908721, 1110659, 1817442, 2221318, 3331977, 6663954, 9995931, 19991862]

約数ペア:

[(1, 19991862), (2, 9995931), (3, 6663954), (6, 3331977), (9, 2221318), (11, 1817442), (18, 1110659), (22, 908721), (33, 605814), (66, 302907), (67, 298386), (99, 201938), (121, 165222), (134, 149193), (137, 145926), (198, 100969), (201, 99462), (242, 82611), (274, 72963), (363, 55074), (402, 49731), (411, 48642), (603, 33154), (726, 27537), (737, 27126), (822, 24321), (1089, 18358), (1206, 16577), (1233, 16214), (1474, 13563), (1507, 13266), (2178, 9179), (2211, 9042), (2466, 8107), (3014, 6633), (4422, 4521)]