21197358

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12941}}^1$

素因数の和:12969

約数の個数: 48

約数和(自身を含む): 56530656

約数和(自身を除く): 35333298

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12941, 25882, 38823, 77646, 90587, 116469, 168233, 181174, 232938, 271761, 336466, 504699, 543522, 815283, 1009398, 1177631, 1514097, 1630566, 2355262, 3028194, 3532893, 7065786, 10598679, 21197358]

約数ペア:

[(1, 21197358), (2, 10598679), (3, 7065786), (6, 3532893), (7, 3028194), (9, 2355262), (13, 1630566), (14, 1514097), (18, 1177631), (21, 1009398), (26, 815283), (39, 543522), (42, 504699), (63, 336466), (78, 271761), (91, 232938), (117, 181174), (126, 168233), (182, 116469), (234, 90587), (273, 77646), (546, 38823), (819, 25882), (1638, 12941)]