21721284

素因数分解:

$2^2\times 3^7\times {\mathrm{13}}^1\times {\mathrm{191}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 61716480

約数和(自身を除く): 39995196

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 191, 234, 243, 324, 351, 382, 468, 486, 573, 702, 729, 764, 972, 1053, 1146, 1404, 1458, 1719, 2106, 2187, 2292, 2483, 2916, 3159, 3438, 4212, 4374, 4966, 5157, 6318, 6876, 7449, 8748, 9477, 9932, 10314, 12636, 14898, 15471, 18954, 20628, 22347, 28431, 29796, 30942, 37908, 44694, 46413, 56862, 61884, 67041, 89388, 92826, 113724, 134082, 139239, 185652, 201123, 268164, 278478, 402246, 417717, 556956, 603369, 804492, 835434, 1206738, 1670868, 1810107, 2413476, 3620214, 5430321, 7240428, 10860642, 21721284]

約数ペア:

[(1, 21721284), (2, 10860642), (3, 7240428), (4, 5430321), (6, 3620214), (9, 2413476), (12, 1810107), (13, 1670868), (18, 1206738), (26, 835434), (27, 804492), (36, 603369), (39, 556956), (52, 417717), (54, 402246), (78, 278478), (81, 268164), (108, 201123), (117, 185652), (156, 139239), (162, 134082), (191, 113724), (234, 92826), (243, 89388), (324, 67041), (351, 61884), (382, 56862), (468, 46413), (486, 44694), (573, 37908), (702, 30942), (729, 29796), (764, 28431), (972, 22347), (1053, 20628), (1146, 18954), (1404, 15471), (1458, 14898), (1719, 12636), (2106, 10314), (2187, 9932), (2292, 9477), (2483, 8748), (2916, 7449), (3159, 6876), (3438, 6318), (4212, 5157), (4374, 4966)]