21417484

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 46252080

約数和(自身を除く): 24834596

約数列:

[1, 2, 4, 11, 17, 19, 22, 34, 38, 44, 68, 76, 121, 137, 187, 209, 242, 274, 323, 374, 418, 484, 548, 646, 748, 836, 1292, 1507, 2057, 2299, 2329, 2603, 3014, 3553, 4114, 4598, 4658, 5206, 6028, 7106, 8228, 9196, 9316, 10412, 14212, 16577, 25619, 28633, 33154, 39083, 44251, 51238, 57266, 66308, 78166, 88502, 102476, 114532, 156332, 177004, 281809, 314963, 486761, 563618, 629926, 973522, 1127236, 1259852, 1947044, 5354371, 10708742, 21417484]

約数ペア:

[(1, 21417484), (2, 10708742), (4, 5354371), (11, 1947044), (17, 1259852), (19, 1127236), (22, 973522), (34, 629926), (38, 563618), (44, 486761), (68, 314963), (76, 281809), (121, 177004), (137, 156332), (187, 114532), (209, 102476), (242, 88502), (274, 78166), (323, 66308), (374, 57266), (418, 51238), (484, 44251), (548, 39083), (646, 33154), (748, 28633), (836, 25619), (1292, 16577), (1507, 14212), (2057, 10412), (2299, 9316), (2329, 9196), (2603, 8228), (3014, 7106), (3553, 6028), (4114, 5206), (4598, 4658)]