21272076

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:444

約数の個数: 108

約数和(自身を含む): 64733760

約数和(自身を除く): 43461684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 49, 62, 63, 84, 93, 98, 124, 126, 147, 186, 196, 217, 252, 279, 294, 372, 389, 434, 441, 558, 588, 651, 778, 868, 882, 1116, 1167, 1302, 1519, 1556, 1764, 1953, 2334, 2604, 2723, 3038, 3501, 3906, 4557, 4668, 5446, 6076, 7002, 7812, 8169, 9114, 10892, 12059, 13671, 14004, 16338, 18228, 19061, 24118, 24507, 27342, 32676, 36177, 38122, 48236, 49014, 54684, 57183, 72354, 76244, 84413, 98028, 108531, 114366, 144708, 168826, 171549, 217062, 228732, 253239, 337652, 343098, 434124, 506478, 590891, 686196, 759717, 1012956, 1181782, 1519434, 1772673, 2363564, 3038868, 3545346, 5318019, 7090692, 10636038, 21272076]

約数ペア:

[(1, 21272076), (2, 10636038), (3, 7090692), (4, 5318019), (6, 3545346), (7, 3038868), (9, 2363564), (12, 1772673), (14, 1519434), (18, 1181782), (21, 1012956), (28, 759717), (31, 686196), (36, 590891), (42, 506478), (49, 434124), (62, 343098), (63, 337652), (84, 253239), (93, 228732), (98, 217062), (124, 171549), (126, 168826), (147, 144708), (186, 114366), (196, 108531), (217, 98028), (252, 84413), (279, 76244), (294, 72354), (372, 57183), (389, 54684), (434, 49014), (441, 48236), (558, 38122), (588, 36177), (651, 32676), (778, 27342), (868, 24507), (882, 24118), (1116, 19061), (1167, 18228), (1302, 16338), (1519, 14004), (1556, 13671), (1764, 12059), (1953, 10892), (2334, 9114), (2604, 8169), (2723, 7812), (3038, 7002), (3501, 6076), (3906, 5446), (4557, 4668)]