19909428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{743}}^1$

素因数の和:797

約数の個数: 96

約数和(自身を含む): 59996160

約数和(自身を除く): 40086732

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 29, 33, 42, 44, 58, 66, 77, 84, 87, 116, 132, 154, 174, 203, 231, 308, 319, 348, 406, 462, 609, 638, 743, 812, 924, 957, 1218, 1276, 1486, 1914, 2229, 2233, 2436, 2972, 3828, 4458, 4466, 5201, 6699, 8173, 8916, 8932, 10402, 13398, 15603, 16346, 20804, 21547, 24519, 26796, 31206, 32692, 43094, 49038, 57211, 62412, 64641, 86188, 98076, 114422, 129282, 150829, 171633, 228844, 237017, 258564, 301658, 343266, 452487, 474034, 603316, 686532, 711051, 904974, 948068, 1422102, 1659119, 1809948, 2844204, 3318238, 4977357, 6636476, 9954714, 19909428]

約数ペア:

[(1, 19909428), (2, 9954714), (3, 6636476), (4, 4977357), (6, 3318238), (7, 2844204), (11, 1809948), (12, 1659119), (14, 1422102), (21, 948068), (22, 904974), (28, 711051), (29, 686532), (33, 603316), (42, 474034), (44, 452487), (58, 343266), (66, 301658), (77, 258564), (84, 237017), (87, 228844), (116, 171633), (132, 150829), (154, 129282), (174, 114422), (203, 98076), (231, 86188), (308, 64641), (319, 62412), (348, 57211), (406, 49038), (462, 43094), (609, 32692), (638, 31206), (743, 26796), (812, 24519), (924, 21547), (957, 20804), (1218, 16346), (1276, 15603), (1486, 13398), (1914, 10402), (2229, 8932), (2233, 8916), (2436, 8173), (2972, 6699), (3828, 5201), (4458, 4466)]