21413196

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 108

約数和(自身を含む): 64318800

約数和(自身を除く): 42905604

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 61, 63, 84, 98, 122, 126, 147, 183, 196, 199, 244, 252, 294, 366, 398, 427, 441, 549, 588, 597, 732, 796, 854, 882, 1098, 1194, 1281, 1393, 1708, 1764, 1791, 2196, 2388, 2562, 2786, 2989, 3582, 3843, 4179, 5124, 5572, 5978, 7164, 7686, 8358, 8967, 9751, 11956, 12139, 12537, 15372, 16716, 17934, 19502, 24278, 25074, 26901, 29253, 35868, 36417, 39004, 48556, 50148, 53802, 58506, 72834, 84973, 87759, 107604, 109251, 117012, 145668, 169946, 175518, 218502, 254919, 339892, 351036, 437004, 509838, 594811, 764757, 1019676, 1189622, 1529514, 1784433, 2379244, 3059028, 3568866, 5353299, 7137732, 10706598, 21413196]

約数ペア:

[(1, 21413196), (2, 10706598), (3, 7137732), (4, 5353299), (6, 3568866), (7, 3059028), (9, 2379244), (12, 1784433), (14, 1529514), (18, 1189622), (21, 1019676), (28, 764757), (36, 594811), (42, 509838), (49, 437004), (61, 351036), (63, 339892), (84, 254919), (98, 218502), (122, 175518), (126, 169946), (147, 145668), (183, 117012), (196, 109251), (199, 107604), (244, 87759), (252, 84973), (294, 72834), (366, 58506), (398, 53802), (427, 50148), (441, 48556), (549, 39004), (588, 36417), (597, 35868), (732, 29253), (796, 26901), (854, 25074), (882, 24278), (1098, 19502), (1194, 17934), (1281, 16716), (1393, 15372), (1708, 12537), (1764, 12139), (1791, 11956), (2196, 9751), (2388, 8967), (2562, 8358), (2786, 7686), (2989, 7164), (3582, 5978), (3843, 5572), (4179, 5124)]